Wh to Ah Calculator

Convert watt-hours (Wh) to amp-hours (Ah) for battery capacity. Divide Wh by voltage to determine the Ah rating.

ByPRIYA SHARMAโ€ขUpdated April 20, 2026
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Reviewed byDR. RAJIV NAIR
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Fact checked byNEHA KAPOOR
Wh
V

CAPACITY

100 Ah

IN mAh

100,000 mAh

FORMULA

Ah = Wh / V

๐Ÿ’ก How to Convert Wh to Ah

Formula

Ah = Wh / V

Example: 1,200 Wh at 12V โ†’ Ah = 1,200 / 12 = 100 Ah

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