Accurate EV & energy calculators, instantly.
Know your EV charging cost, charging time, and range — plus home energy and finance tools. Built by electrical experts. No sign-up, no fluff.
- 73
- EV models covered
- 51
- States + DC rates
- 100%
- Free, no sign-up
Per-model depth
Real specs for every EV — not one-size-fits-all defaults.
Per-state rates
Local electricity prices so estimates match your bill.
Electrical accuracy
Breaker and NEC math done right, where others are vague.
Instant & free
No sign-up, no email. Results update as you type.
EV Charging
Charging cost, time, range — the everyday EV numbers.
EV Charging Cost Calculator
Estimate the cost to charge your EV at home or in public based on battery size, charge level, and your electricity rate.
Open calculatorEV Charging Time Calculator
How long to charge your EV on Level 1, Level 2, or DC fast charging — from any starting battery level.
Open calculatorEV Range Calculator
Estimate real-world driving range from battery size and efficiency, adjusted for temperature and speed.
Open calculatorLevel 2 Charger Breaker & Amperage Sizing
Size the breaker and wire for a Level 2 EV charger using the NEC 125% continuous-load rule.
Open calculatorHome EV Charger Installation Cost
Estimate the cost to install a Level 2 home charger, including panel, wiring, and labor by state.
Open calculatorMonthly EV Charging Cost Calculator
Estimate your monthly cost to charge an EV at home from how much you drive — plus the monthly savings versus a gas car.
Open calculatorSolar Panels for EV Charging Calculator
Find how much solar capacity and how many panels you'd need to offset your EV's annual charging energy.
Open calculatorOff-Peak EV Charging Savings Calculator
See how much you save by charging your EV off-peak on a time-of-use plan versus a flat electricity rate.
Open calculatorEV Finance & Ownership
Loans, total cost of ownership, insurance, tax credits.
EV Loan & Payment Calculator
Calculate monthly payments, total interest, and payoff for financing an electric vehicle.
Open calculatorEV vs Gas Cost of Ownership
Compare the total cost of owning an EV versus a gas car over time — fuel, maintenance, and financing.
Open calculatorEV Tax Credit Calculator
See what an EV tax credit is worth — effective price, plus the point-of-sale vs tax-time impact on your payment and interest.
Open calculatorEV Lease Payment Calculator
Calculate a monthly EV lease payment from price, residual value, money factor, and term — and see the APR it works out to.
Open calculatorEV Depreciation Calculator
Project an EV's resale value and total depreciation over the years you own it.
Open calculatorTrue Cost to Own an EV Calculator
Add up the real monthly cost of owning an EV — payment, insurance, home charging, and maintenance.
Open calculatorHome Energy
Heat pumps, electricity costs, electrification payback.
Heat Pump Payback Calculator
Estimate how many years until a heat pump pays for itself versus your current heating system — electric, gas, oil, or propane.
Open calculatorElectricity Cost Calculator
Calculate the running cost of any appliance from its wattage, hours of use, and your electricity rate.
Open calculatorHeat Pump Sizing Calculator
Estimate the heat pump size (BTU and tons) your home needs, adjusted for square footage, climate, and insulation.
Open calculatorGenerator Sizing Calculator
Size a home generator by picking the appliances you want to back up — running watts plus the largest startup surge.
Open calculatorHome Electrical Load Calculator
Estimate your home's electrical demand with the NEC load-calculation method and see if your 100A or 200A service has room.
Open calculatorGenerator Runtime & Fuel Calculator
Estimate how long a generator runs on a tank and its fuel use and cost — by load level and fuel type.
Open calculatorElectricity Bill Estimator
Estimate your monthly electricity bill from your major loads — and see which ones drive the cost.
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