Ah to Wh Calculator
Convert electric charge in Amp-hours (Ah) to energy in Watt-hours (Wh).
Ah
V
How to Convert Ah to Wh
To convert Amp-hours (Ah) to Watt-hours (Wh), you need to multiply the electric charge in Amp-hours by the voltage in Volts.
Formula
E(Wh) = Q(Ah) × V(V)
Calculation Example
Question: A 12V battery has a capacity of 100 Ah. What is its energy capacity in Watt-hours?
Answer:
E = 100 Ah × 12 V = 1200 Wh
Common Battery Capacities
| Battery Type | Voltage (V) | Capacity (Ah) | Energy (Wh) |
|---|---|---|---|
| AA Alkaline | 1.5 V | 2.5 Ah | 3.75 Wh |
| Car Battery | 12 V | 50 Ah | 600 Wh |
| Power Bank | 3.7 V | 10 Ah | 37 Wh |