kWh to Ah Calculator
Convert kWh to Ah for battery bank sizing. Find out how many amp-hours of battery capacity you need.
kWh
V
CAPACITY
416.67 Ah
IN mAh
416,667 mAh
FORMULA
Ah = (kWhร1000)/V
๐ก How to Convert kWh to Ah
Formula
Ah = (kWh ร 1,000) / V
Example: 5 kWh at 12V โ Ah = (5 ร 1,000) / 12 = 416.7 Ah
Example: 5 kWh at 12V โ Ah = (5 ร 1,000) / 12 = 416.7 Ah
For solar battery banks, you'd need ~417 Ah at 12V to store 5 kWh. Account for depth of discharge: lead-acid (50% DoD) needs double, so ~834 Ah.
5 kWh at 12V = 416.7 Ah needed. For lead-acid (50% DoD), double it to 833 Ah.