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mAh to Wh Calculator

Convert battery capacity (mAh) and voltage to energy (Wh).

Input Data

Input Capacity Q.
mAh
Input Voltage V.
V

Results

7.4Wh
E = Q·V / 1000 = 7.400000 Wh

At a glance:mAh to Wh Calculator: enter parameters to compute results; complements related calculators.

Formula

E(Wh) = Q(mAh)·V / 1000

How to Use

  1. Enter capacity mAh and voltage V.
  2. Get energy Wh.

Case Studies

2000 mAh, 3.7 V

E = 2000×3.7/1000 = 7.4 Wh.

FAQ

Voltage matters?

Higher voltage → more energy at same mAh.

Why Wh?

Wh is fairer for runtime comparison.

Related Tools

References

Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:mAh to Wh Calculator/electric/mah-to-wh)。