Battery capacity
Calculate Battery capacity instantly with the exact formula and a worked example. Free online calculator — no signup.
Battery capacity
Load, kWh/day
Autonomy, days
DoD, %
Bank V
Battery capacity
416.6667Ah
Capacitance
417 A·h
More about: Battery capacity
What it calculates
The “Battery capacity” calculator computes Battery capacity in Ah from 4 parameters: load, kwh/day, autonomy, days, dod, %, bank v.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters Load, kWh/day = 5, Autonomy, days = 2, DoD, % = 50, Bank V = 48 the result is 416.67 Ah (C = (E·days·1000/V) / DoD).
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.