Electric ChargeAmpere Hours to Milliampere Hours

Ampere-hours to Milliampere-hours

Snapshot

1 Ampere-hour equals 1,000 Milliampere-hours. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.

Reference basis: This conversion uses exact coulomb-based electric charge definitions.
Example: For 0.001 Ampere-hours, the result equals 1 Milliampere-hour.
Use the reverse page if you need the opposite direction with the same basis.

Use the interactive calculator below for custom values and the common-value table for quick checks.

Interactive conversion

Converter Calculator

1,000 Milliampere-hours (mAh)

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Machine access

Available to apps and AI agents

Ampere-hours to Milliampere-hours can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The identifiers below select the same calculation as the calculator.

Machine-readable identifiers

Conversion family: electric-charge
Source unit: ampere_hours
Target unit: milliampere_hours

The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "electric-charge",
  "value": 1,
  "from": "ampere_hours",
  "to": "milliampere_hours"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "electric-charge",
    "value": 1,
    "from": "ampere_hours",
    "to": "milliampere_hours",
    "result": {
      "raw": 1000,
      "display": "1,000"
    },
    "canonicalPath": "/electric-charge/ampere-hours-to-milliampere-hours/"
  }
}

Full API documentation

Explanation

Formula: Milliampere-hours = Ampere-hours × 1,000. Why: ampere-hour units convert to charge through current over time, with 1 Ah = 3600 C exactly and 1 mAh = 3.6 C exactly, while coulomb-prefixed units scale by exact powers of ten.

Ampere-hours (Ah): a larger electric-charge unit commonly used for battery capacity because it expresses current delivered over time.

Milliampere-hours (mAh): a battery-scale electric-charge unit equal to one thousandth of an ampere-hour, commonly used for small batteries and portable electronics.

This route is mainly useful when switching between battery-capacity style units and standard SI charge units while keeping the same physical quantity.

This conversion is purely multiplicative with no offset because both units reduce exactly to coulombs under the same electric-charge model.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Ampere-hour = 1,000 Milliampere-hours.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Ampere-hours (Ah)	Milliampere-hours (mAh)
0.001	1
0.01	10
0.1	100
1	1,000
10	10,000
100	100,000
1,000	1,000,000
5,000	5,000,000

Questions & answers

Frequently Asked Questions

What is 1 ampere-hour in milliampere-hours?

1 Ampere-hour equals 1,000 Milliampere-hours on this page.

Does this Ampere-hours to Milliampere-hours page use 1 Ah = 3600 C?

Yes. Routes that involve ampere-hours convert through the exact current-time relationship 1 Ah = 3600 C, then apply any needed SI prefix scaling.

When would I convert ampere-hours to milliampere-hours?