Charge / A·h → mA·h
Convert Ampere-hours to Milliampere-hours
Convert electric charge in coulombs and ampere-hours. Convert Ampere-hours (A·h) to Milliampere-hours (mA·h). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Milliampere-hours to Ampere-hours →
How to convert ampere-hours to milliampere-hours
Charge is current integrated over time. An ampere-hour is exactly 3600 coulombs. Battery energy additionally depends on voltage and cannot be found from charge alone.
Use x for the value in A·h, b for the intermediate value in C, and y for the result in mA·h.
mA·h = A·h × 3600 ÷ 3.6
Worked examples
10 A·h ≈ 10000 mA·h
Step 1: (10 × 3600) ≈ 36000 C.
Step 2: 36000 ÷ 3.6 ≈ 10000 mA·h.20 A·h ≈ 20000 mA·h
Step 1: (20 × 3600) ≈ 72000 C.
Step 2: 72000 ÷ 3.6 ≈ 20000 mA·h.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Ampere-hours
Ampere-hours (A·h) measures charge under the conventions above. The base value in C is (x × 3600), where x is the numerical value in A·h. Factors shown here are rounded for display; calculations use the stored factor.
About Milliampere-hours
Milliampere-hours (mA·h) measures charge under the conventions above. The base value in C is (x × 3.6), where x is the numerical value in mA·h. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Ampere-hours to milliampere-hours reference table
| Ampere-hours (A·h) | Milliampere-hours (mA·h) |
|---|---|
| 1 | 1000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 1000 | 1000000 |
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