Sizing & Design

Solar Panel CalculatorSolar Production CalculatorRoof Size to Solar CalculatorOff-Grid System CalculatorRoof Angle & Tilt CalculatorSolar Irradiance CalculatorSolar Cable Size CalculatorShading Loss CalculatorAppliance Solar Load CalculatorElectricity Bill Calculator

Storage & Power

Battery Size CalculatorInverter Size CalculatorEV Charging Load CalculatorBattery Backup Runtime CalculatorCharge Controller Sizing CalculatorGenerator Backup Sizing CalculatorBattery ROI / Time-of-Use CalculatorBattery Storage Cost Calculator

Money & Payback

Solar ROI CalculatorSolar Loan CalculatorSolar Savings CalculatorSolar Payback Period CalculatorNet Metering CalculatorLease vs. Buy vs. PPA CalculatorSolar Panel Cost CalculatorSolar Tax Credit & Incentive Calculator

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All Calculators

Every tool on Solargrin in one place, grouped by category. Use your browser's find function (Ctrl/Cmd+F) to jump to a specific calculator.

Appliance Running Cost Calculators

25 tools
Air Conditioner Running Cost Calculator Aquarium Heater Running Cost Calculator Baseboard Heater Running Cost Calculator Christmas Lights Running Cost Calculator Clothes Dryer Running Cost Calculator Dehumidifier Running Cost Calculator Desktop Computer Running Cost Calculator Dishwasher Running Cost Calculator Electric Blanket Running Cost Calculator Electric Fireplace Running Cost Calculator Electric Lawn Mower Running Cost Calculator Electric Oven Running Cost Calculator Electric Water Heater Running Cost Calculator Freezer Running Cost Calculator Gaming Console Running Cost Calculator Garage Heater Running Cost Calculator Hot Tub Running Cost Calculator Humidifier Running Cost Calculator Microwave Running Cost Calculator Mini-Split (Ductless AC) Running Cost Calculator Reptile Heat Lamp Running Cost Calculator Space Heater Running Cost Calculator TV Running Cost Calculator Washing Machine Running Cost Calculator Water Softener Running Cost Calculator

Battery Backup by Outage Duration

6 tools
What Size Battery Do You Need for a 1 Week Outage? What Size Battery Do You Need for a 12 Hours Outage? What Size Battery Do You Need for a 24 Hours (1 Day) Outage? What Size Battery Do You Need for a 48 Hours (2 Days) Outage? What Size Battery Do You Need for a 5 Days Outage? What Size Battery Do You Need for a 72 Hours (3 Days) Outage?

Battery Cost by Capacity

6 tools
10kWh Home Battery Cost: Installed Price 13.5kWh Home Battery Cost: Installed Price 20kWh Home Battery Cost: Installed Price 27kWh Home Battery Cost: Installed Price 40kWh Home Battery Cost: Installed Price 5kWh Home Battery Cost: Installed Price

EV & Electric Mobility

8 tools
E-Bike Charging Cost Calculator EV Battery Degradation Calculator EV Charger Installation Cost Calculator EV Charging Load Calculator — Extra Solar & Charger Size for 2026 EV Charging Time Calculator EV Home Charging Cost Calculator EV vs Gas Car Total Cost of Ownership Calculator Electric Scooter Charging Cost Calculator

EV Model Charging Calculators

72 tools
Acura ZDX Home Charging Cost & Time Calculator Audi Q4 e-tron Home Charging Cost & Time Calculator Audi Q6 e-tron Home Charging Cost & Time Calculator Audi e-tron GT Home Charging Cost & Time Calculator BMW i4 Home Charging Cost & Time Calculator BMW i5 Home Charging Cost & Time Calculator BMW i7 Home Charging Cost & Time Calculator BMW iX Home Charging Cost & Time Calculator BMW iX1 Home Charging Cost & Time Calculator Cadillac Lyriq Home Charging Cost & Time Calculator Cadillac Optiq Home Charging Cost & Time Calculator Cadillac Vistiq Home Charging Cost & Time Calculator Chevrolet Blazer EV Home Charging Cost & Time Calculator Chevrolet Bolt EUV Home Charging Cost & Time Calculator Chevrolet Bolt EV Home Charging Cost & Time Calculator Chevrolet Equinox EV Home Charging Cost & Time Calculator Chevrolet Silverado EV Home Charging Cost & Time Calculator Chevrolet Silverado EV WT Home Charging Cost & Time Calculator Dodge Charger Daytona EV Home Charging Cost & Time Calculator Fiat 500e Home Charging Cost & Time Calculator Ford E-Transit Home Charging Cost & Time Calculator Ford F-150 Lightning Home Charging Cost & Time Calculator Ford Mustang Mach-E GT Home Charging Cost & Time Calculator Ford Mustang Mach-E Home Charging Cost & Time Calculator GMC Hummer EV Home Charging Cost & Time Calculator Genesis Electrified GV70 Home Charging Cost & Time Calculator Genesis GV60 Home Charging Cost & Time Calculator Hyundai Ioniq 5 Home Charging Cost & Time Calculator Hyundai Ioniq 5 N Home Charging Cost & Time Calculator Hyundai Ioniq 6 Home Charging Cost & Time Calculator Hyundai Ioniq 9 Home Charging Cost & Time Calculator Hyundai Kona Electric Home Charging Cost & Time Calculator Jeep Wagoneer S Home Charging Cost & Time Calculator Kia EV3 Home Charging Cost & Time Calculator Kia EV4 Home Charging Cost & Time Calculator Kia EV6 GT Home Charging Cost & Time Calculator Kia EV6 Home Charging Cost & Time Calculator Kia EV9 Home Charging Cost & Time Calculator Kia Niro EV Home Charging Cost & Time Calculator Lexus RZ Home Charging Cost & Time Calculator Mazda MX-30 Home Charging Cost & Time Calculator Mercedes-Benz EQB Home Charging Cost & Time Calculator Mercedes-Benz EQE Home Charging Cost & Time Calculator Mercedes-Benz EQS Home Charging Cost & Time Calculator Mercedes-Benz EQS SUV Home Charging Cost & Time Calculator Mini Cooper SE Home Charging Cost & Time Calculator Nissan Ariya Home Charging Cost & Time Calculator Nissan Leaf Home Charging Cost & Time Calculator Polestar 2 Home Charging Cost & Time Calculator Polestar 3 Home Charging Cost & Time Calculator Polestar 4 Home Charging Cost & Time Calculator Ram ProMaster EV Home Charging Cost & Time Calculator Rivian R1S Home Charging Cost & Time Calculator Rivian R1T Home Charging Cost & Time Calculator Rivian R1T Quad-Motor Home Charging Cost & Time Calculator Rivian R2 Home Charging Cost & Time Calculator Smart #1 Home Charging Cost & Time Calculator Subaru Solterra Home Charging Cost & Time Calculator Subaru Trailseeker Home Charging Cost & Time Calculator Tesla Cybertruck Home Charging Cost & Time Calculator Tesla Model 3 Home Charging Cost & Time Calculator Tesla Model 3 Performance Home Charging Cost & Time Calculator Tesla Model S Home Charging Cost & Time Calculator Tesla Model X Home Charging Cost & Time Calculator Tesla Model Y Home Charging Cost & Time Calculator Tesla Model Y Performance Home Charging Cost & Time Calculator Volkswagen ID.4 Home Charging Cost & Time Calculator Volkswagen ID.7 Home Charging Cost & Time Calculator Volkswagen ID.Buzz Home Charging Cost & Time Calculator Volvo EX30 Home Charging Cost & Time Calculator Volvo EX90 Home Charging Cost & Time Calculator Volvo XC40 Recharge Home Charging Cost & Time Calculator

Electrical & Conversions

25 tools
Amp-Hours to Watt-Hours Calculator Amps to Watts Calculator Circuit Breaker Size Calculator Demand Charge Calculator Electricity Bill Calculator — Estimate Your Monthly Bill, 2026 Energy Independence Calculator Extension Cord Amperage Calculator Generator Backup Sizing Calculator — kW Size & Fuel Use, 2026 Generator Fuel Consumption Calculator HP to Watts Calculator HVAC Tonnage Calculator Household Electricity Carbon Footprint Calculator Ohm's Law Calculator Peak Shaving Calculator — Battery Demand Charge Savings, 2026 Phantom Load Calculator Portable Power Station Runtime Calculator Propane Tank Size Calculator Surge Watts vs Running Watts Calculator Voltage Drop Calculator Watts to Amps Calculator Watts to kWh Calculator Wire Ampacity Derating Calculator Wire Gauge Calculator kWh Usage From Bill Calculator kWh to kW Calculator

Generator Sizing by Home Size

8 tools
What Size Generator Do You Need for a 1,000 Sq Ft Home? What Size Generator Do You Need for a 1,500 Sq Ft Home? What Size Generator Do You Need for a 2,000 Sq Ft Home? What Size Generator Do You Need for a 2,500 Sq Ft Home? What Size Generator Do You Need for a 3,000 Sq Ft Home? What Size Generator Do You Need for a 3,500 Sq Ft Home? What Size Generator Do You Need for a 4,000 Sq Ft Home? What Size Generator Do You Need for a 5,000+ Sq Ft Home?

Inverter & Charger Sizing Tiers

6 tools
16 Amp EV Charger: Power Output & Charging Time 24 Amp EV Charger: Power Output & Charging Time 32 Amp EV Charger: Power Output & Charging Time 40 Amp EV Charger: Power Output & Charging Time 48 Amp EV Charger: Power Output & Charging Time 60 Amp EV Charger: Power Output & Charging Time

Money & Payback

17 tools
Ceiling Fan vs AC Savings Calculator Electricity Cost Calculator Greenhouse Heating Cost Calculator Heat Pump vs Furnace Cost Calculator Honda Prologue Home Charging Cost & Time Calculator LED vs Incandescent Savings Calculator Lease vs. Buy vs. PPA Calculator — Which Actually Saves More, 2026 Lucid Air Home Charging Cost & Time Calculator MPPT vs PWM Savings Calculator Net Metering Calculator — Your Real Bill After Export Credits, 2026 Porsche Taycan Home Charging Cost & Time Calculator Programmable Thermostat Savings Calculator Refrigerator Energy Cost Calculator Tankless vs Tank Water Heater Cost Calculator Time-of-Use Savings Calculator Toyota bZ4X Home Charging Cost & Time Calculator Window Replacement Energy Savings Calculator

Solar Cost by System Size

10 tools
10kW Solar System Cost: What You'll Actually Pay 12kW Solar System Cost: What You'll Actually Pay 15kW Solar System Cost: What You'll Actually Pay 20kW Solar System Cost: What You'll Actually Pay 3kW Solar System Cost: What You'll Actually Pay 4kW Solar System Cost: What You'll Actually Pay 5kW Solar System Cost: What You'll Actually Pay 6kW Solar System Cost: What You'll Actually Pay 7kW Solar System Cost: What You'll Actually Pay 8kW Solar System Cost: What You'll Actually Pay

Solar Loan Payment by Amount

6 tools
$10,000 Solar Loan: Monthly Payment & Total Cost $15,000 Solar Loan: Monthly Payment & Total Cost $20,000 Solar Loan: Monthly Payment & Total Cost $25,000 Solar Loan: Monthly Payment & Total Cost $30,000 Solar Loan: Monthly Payment & Total Cost $40,000 Solar Loan: Monthly Payment & Total Cost

Solar Sizing & Design

33 tools
Appliance Solar Load Calculator — AC, Pool Pump & More, 2026 Attic Fan Solar Calculator CO2 Savings Calculator Cost Per Watt Solar Calculator Estimate Solar System Size & Savings for Your Roof — 2026 Off-Grid Cabin Solar Calculator Off-Grid Solar Calculator — Panels, Battery & Autonomy for 2026 Off-Grid Solar Water Pump Calculator Pool Pump Solar Calculator RV Solar Calculator Roof Angle & Tilt Calculator — Find Your Optimal Pitch, 2026 Roof Size to Solar Calculator — How Many Panels Fit, 2026 Security Camera Solar Calculator Shading Loss Calculator — What Shade Is Really Costing You, 2026 Shed & Workshop Solar Calculator Solar Cable Size Calculator — Correct Wire Gauge for 2026 Solar Generator vs Gas Generator Calculator Solar Irradiance Calculator — Peak Sun Hours by Month, 2026 Solar Loan APR Calculator Solar Loan Calculator — Monthly Payment vs. Your Bill, 2026 Solar Panel Cleaning Savings Calculator Solar Panel Cost Calculator — Full Price Breakdown, 2026 Solar Panel Degradation Calculator Solar Panel Efficiency Calculator Solar Panel Roof Load Calculator Solar Payback Period Calculator — Your Break-Even Year, 2026 Solar Production Calculator — Monthly & Annual Output, 2026 Solar ROI Calculator — Payback & 25-Year Return for 2026 Solar Savings Calculator — See What You'll Actually Save, 2026 Solar Seasonal Output Calculator Solar String Sizing Calculator Solar Tax Credit & Incentive Calculator — Your Net Cost, 2026 Well Pump Solar Calculator

Solar Sizing by Monthly Usage

9 tools
How Many Solar Panels Do You Need for 1000 kWh a Month? How Many Solar Panels Do You Need for 1250 kWh a Month? How Many Solar Panels Do You Need for 1500 kWh a Month? How Many Solar Panels Do You Need for 1750 kWh a Month? How Many Solar Panels Do You Need for 2000 kWh a Month? How Many Solar Panels Do You Need for 2500 kWh a Month? How Many Solar Panels Do You Need for 3000 kWh a Month? How Many Solar Panels Do You Need for 500 kWh a Month? How Many Solar Panels Do You Need for 750 kWh a Month?

Storage & Backup Power

22 tools
Battery Backup Runtime Calculator — How Long Will It Last, 2026 Battery C-Rate Calculator Battery Depth of Discharge Calculator Battery ROI Calculator — Time-of-Use Arbitrage, 2026 Battery Size Calculator — Right-Size Your Solar Storage for 2026 Charge Controller Sizing Calculator — Right MPPT Amp Rating, 2026 Garage Door Opener Battery Backup Calculator Home Battery Cost Calculator — Installed Price Breakdown, 2026 Home Battery vs Generator Cost Calculator Inverter Loss Calculator Inverter Size Calculator — Right kVA for Your Load, 2026 Microinverter vs String Inverter Calculator Power Tool Battery Runtime Calculator Sump Pump Battery Backup Calculator What Inverter Size Fits a 10kW Solar Array? What Inverter Size Fits a 12kW Solar Array? What Inverter Size Fits a 15kW Solar Array? What Inverter Size Fits a 3kW Solar Array? What Inverter Size Fits a 4kW Solar Array? What Inverter Size Fits a 5kW Solar Array? What Inverter Size Fits a 6kW Solar Array? What Inverter Size Fits a 8kW Solar Array?

Utility Rate Calculators

121 tools
AEP Ohio Electricity Cost Calculator AEP Texas Electricity Cost Calculator Alabama Power Electricity Cost Calculator Ameren Electricity Cost Calculator Appalachian Power Electricity Cost Calculator Arizona Public Service (APS) Electricity Cost Calculator Atlantic City Electric Electricity Cost Calculator Avista Electricity Cost Calculator Baltimore Gas and Electric (BGE) Electricity Cost Calculator Bangor Hydro-Electric legacy territory (Versant Power) Electricity Cost Calculator Basin Electric Power Cooperative Electricity Cost Calculator Big Rivers Electric Corporation Electricity Cost Calculator Black Hills Energy Electricity Cost Calculator Buckeye Power Electricity Cost Calculator Burbank Water and Power Electricity Cost Calculator CPS Energy Electricity Cost Calculator CenterPoint Energy Electricity Cost Calculator Central Hudson Electricity Cost Calculator Central Maine Power (CMP) Electricity Cost Calculator Choptank Electric Cooperative Electricity Cost Calculator Chugach Electric Association Electricity Cost Calculator City Utilities of Springfield Electricity Cost Calculator Coast Electric Power Association Electricity Cost Calculator Cobb EMC (Electric Membership Corporation) Electricity Cost Calculator Colorado Springs Utilities Electricity Cost Calculator ComEd (Commonwealth Edison) Electricity Cost Calculator Con Edison Electricity Cost Calculator Connecticut Municipal Electric Energy Cooperative Electricity Cost Calculator Consumers Energy Electricity Cost Calculator DTE Energy Electricity Cost Calculator Delaware Electric Cooperative Electricity Cost Calculator Delmarva Power Electricity Cost Calculator Dominion Energy Electricity Cost Calculator Dominion Energy South Carolina Electricity Cost Calculator Duke Energy Electricity Cost Calculator Duquesne Light Electricity Cost Calculator El Paso Electric Electricity Cost Calculator Empire District Electric Electricity Cost Calculator Entergy Electricity Cost Calculator Entergy Mississippi Electricity Cost Calculator Eugene Water & Electric Board (EWEB) Electricity Cost Calculator Evergy Electricity Cost Calculator Eversource Electricity Cost Calculator Florida Power & Light (FPL) Electricity Cost Calculator Fort Collins Utilities Electricity Cost Calculator Georgia Power Electricity Cost Calculator Glendale Water and Power Electricity Cost Calculator Green Mountain Energy (Texas retail) Electricity Cost Calculator Green Mountain Power Electricity Cost Calculator Guam Power Authority Electricity Cost Calculator Hawaiian Electric Electricity Cost Calculator Holyoke Gas & Electric Electricity Cost Calculator Hoosier Energy Electricity Cost Calculator Huntsville Utilities Electricity Cost Calculator Idaho Power Electricity Cost Calculator Imperial Irrigation District (IID) Electricity Cost Calculator Indiana Michigan Power Electricity Cost Calculator JEA (Jacksonville Electric Authority) Electricity Cost Calculator Jackson EMC Electricity Cost Calculator Jersey Central Power & Light (JCP&L) Electricity Cost Calculator Kentucky Power Electricity Cost Calculator Kentucky Utilities (KU) Electricity Cost Calculator LUMA Energy Electricity Cost Calculator Liberty Utilities (New Hampshire) Electricity Cost Calculator Liberty Utilities (New York) Electricity Cost Calculator Los Angeles Department of Water and Power (LADWP) Electricity Cost Calculator Louisville Gas and Electric (LG&E) Electricity Cost Calculator Magic Valley Electric Cooperative Electricity Cost Calculator Met-Ed (Metropolitan Edison) Electricity Cost Calculator Mississippi Power Electricity Cost Calculator Modesto Irrigation District (MID) Electricity Cost Calculator Mon Power Electricity Cost Calculator Montana-Dakota Utilities Electricity Cost Calculator NIPSCO (Northern Indiana Public Service Company) Electricity Cost Calculator NV Energy Electricity Cost Calculator National Grid Electricity Cost Calculator New Hampshire Electric Cooperative Electricity Cost Calculator Norwich Public Utilities Electricity Cost Calculator Oglethorpe Power Electricity Cost Calculator Ohio Edison Electricity Cost Calculator Oncor Electricity Cost Calculator Orange and Rockland Utilities Electricity Cost Calculator Otter Tail Power Electricity Cost Calculator Owensboro Municipal Utilities (OMU) Electricity Cost Calculator PECO Energy Electricity Cost Calculator PG&E (Pacific Gas & Electric) Electricity Cost Calculator PNM (Public Service Company of New Mexico) Electricity Cost Calculator PPL Electric Electricity Cost Calculator PSE&G (Public Service Electric and Gas) Electricity Cost Calculator Pacific Power Electricity Cost Calculator Pasadena Water and Power Electricity Cost Calculator Pedernales Electric Cooperative Electricity Cost Calculator Penelec (Pennsylvania Electric Company) Electricity Cost Calculator Pepco (Potomac Electric Power Company) Electricity Cost Calculator Portland General Electric (PGE) Electricity Cost Calculator Potomac Edison Electricity Cost Calculator Puget Sound Energy Electricity Cost Calculator Rochester Gas and Electric (RG&E) Electricity Cost Calculator Rocky Mountain Power Electricity Cost Calculator Salt River Project (SRP) Electricity Cost Calculator San Diego Gas & Electric (SDG&E) Electricity Cost Calculator Santee Cooper Electricity Cost Calculator Snapping Shoals EMC Electricity Cost Calculator Snohomish County PUD Electricity Cost Calculator South Central Power Company Electricity Cost Calculator South Mississippi Electric Power Association Electricity Cost Calculator Southern California Edison (SCE) Electricity Cost Calculator Tacoma Power Electricity Cost Calculator Tampa Electric (TECO) Electricity Cost Calculator Tucson Electric Power (TEP) Electricity Cost Calculator Turlock Irrigation District (TID) Electricity Cost Calculator United Illuminating Electricity Cost Calculator Unitil Electricity Cost Calculator Vermont Electric Cooperative Electricity Cost Calculator Versant Power Electricity Cost Calculator Walton EMC Electricity Cost Calculator Washington Electric Cooperative Electricity Cost Calculator We Energies Electricity Cost Calculator West Penn Power Electricity Cost Calculator Wisconsin Public Service Electricity Cost Calculator Xcel Energy Electricity Cost Calculator