Estimate ev battery capacity using clear inputs and transparent formulas, with results intended for planning and comparison.
How to use this calculator
For ev battery capacity calculator, enter Usable battery energy (kWh), Usable share of nominal capacity (%), Vehicle efficiency (kWh/100km) using the unit or format beside each field. Select Calculate to apply the formula below, review all returned values together, and use Reset to restore the demonstrated inputs before testing another scenario.
Formula & calculation method
nominalBatteryCapacity = usableEnergy/(usablePercent/100); estimatedRange = 100*usableEnergy/efficiency; energyPerKm = efficiency/100Worked example
For a reproducible ev battery capacity calculator example, use Usable battery energy: 60; Usable share of nominal capacity: 95; Vehicle efficiency: 15. The first returned value, estimated nominal capacity, is calculated with usableEnergy/(usablePercent/100); the other results describe the same scenario. Change one input at a time and keep its unit consistent when comparing scenarios.
Limitations to keep in mind
Vehicle condition, battery health, tire wear, range, and charging depend on use, climate, maintenance, manufacturer data, and measurement conditions. This is not a mechanical inspection or safety clearance.