Battery Amp-Hour (Ah) to Watt-Hour (Wh) Calculator
Convert battery capacity from Amp-hours (Ah) to Watt-hours (Wh)
Battery Ah to Wh Calculator
For Lead-Acid and Lithium Batteries
Results:
Watt-Hours (Wh): 0.00
How to Use the Calculator
Ah to Wh Conversion
- Enter the battery's Amp-Hour (Ah) capacity.
- Input the battery's nominal Voltage (V).
- Click "Calculate" to get the Watt-Hours (Wh).
Resetting Values
- Click the "Reset" button to clear all input fields.
- All result values will return to 0.00.
Battery Power Fundamentals
Watt-Hours (Wh)
Watt-hours (Wh) represent the total energy stored in a battery. It's a crucial metric for understanding how long a battery can power a device.
- Calculated by multiplying Amp-hours (Ah) by Voltage (V).
- Higher Wh means more stored energy.
Amp-Hours (Ah) & CCA
Amp-hours (Ah) measure a battery's capacity to deliver a certain current over time.
- Ah is a measure of capacity.
- CCA to Ah conversion is an approximation, often used for lead-acid batteries.
Key Formulas:
Watt-Hours (Wh) = Amp-Hours (Ah) × Voltage (V)
Kilowatt-Hours (kWh) = Wh / 1000
Calculation Formulas
Watt-Hours (Wh):
Wh = Ah × V
Kilowatt-Hours (kWh):
kWh = Wh / 1000
Example Calculation
Battery with 100 Ah capacity and 12V:
Amp-Hours (Ah): 100 Ah
Voltage (V): 12 V
Wh = 100 Ah × 12 V = 1200 Wh
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