How do you convert kilowatt-hours to ampere-hours?

To convert kilowatt-hours (kWh) to ampere-hours (Ah), multiply the energy in kilowatt-hours by 83.33333 (ampere-hours = kilowatt-hours × 83.33333).

What is 1.2 kilowatt-hours in ampere-hours?

1.2 kilowatt-hours (1.2 kWh) is equal to 100 ampere-hours (100 Ah).

Which is larger, 1 kilowatt-hour (kWh) or 1 ampere-hour (Ah)?

One kilowatt-hour (kWh) is larger than one ampere-hour (Ah). Specifically, 1 kWh contains 83.33333 Ah, whereas 1 Ah is 0.012 kWh.

How do I convert back from ampere-hours (Ah) to kilowatt-hours (kWh)?

To reverse the calculation from Ah to kWh, multiply your ampere-hour value by the inverse factor 0.012 (or divide by 83.33333). You can also click the Swap button in the tool above to flip directions in one click.

How many decimal places should I round kWh to Ah results to?

For everyday comparisons and quick estimates, rounding to 2 decimal places is usually sufficient (for example, 1.2 kWh ≈ 100.00 Ah). For engineering, laboratory, or machining specifications, select 4 or 6 decimals—or Scientific (10ⁿ) mode—in the calculator toolbar above.

Kilowatt-hours to Ampere-hours Converter

Enter the energy in kilowatt-hours below to convert it to ampere-hours.

Ampere-hours to Kilowatt-hours (Ah → kWh)

Convert Kilowatt-hours to Ampere-hours

Enter a value in kilowatt-hours (kWh) to convert to ampere-hours (Ah).

Value (kWh)

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Result

•

100ampere-hours

1.2 kWh = 100 Ah

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Suggested Conversions

Reference:NIST CODATA (CODATA Energy & Thermodynamic Constants)

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Kilowatt-hour to Ampere-hour Conversion Table

Table showing various kilowatt-hour measurements converted to ampere-hours. Click any preset value or arrow to load it into the converter.

Kilowatt-hours (kWh)	Ampere-hours (Ah)
0.5 kWh	41.6666667 Ah
1 kWh	83.3333333 Ah
1.2 kWh	100 Ah
2 kWh	166.6666667 Ah
2.4 kWh	200 Ah
5 kWh	416.6666667 Ah
10 kWh	833.3333333 Ah
13.5 kWh	1,125 Ah
15 kWh	1,250 Ah
20 kWh	1,666.6666667 Ah

How to Convert Kilowatt-hours to Ampere-hours

To convert kilowatt-hours to ampere-hours, multiply the energy by the following conversion ratio: 83.3333333 ampere-hours/kilowatt-hour.

Since one kilowatt-hour is equal to 83.3333333 ampere-hours, you can use this simple formula to convert:

ampere-hours = kilowatt-hours × 83.3333333

The energy in ampere-hours is equal to the energy in kilowatt-hours multiplied by 83.3333333.

For example, here's how to convert 1.2 kilowatt-hours to ampere-hours using the formula above.

ampere-hours = (1.2 kWh × 83.3333333) = 100 Ah

How Many Ampere-hours Are in a Kilowatt-hour?

There are 83.3333333 ampere-hours in a kilowatt-hour, which is why we use this value in the formula above.

1 kWh = 83.3333333 Ah|1 Ah = 0.012 kWh

Our kilowatt-hour to ampere-hour calculator automatically converts your energy measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Kilowatt-hours and ampere-hours are both units used to measure energy. Keep reading to learn more about each unit.

What Is a Kilowatt-hour?

A kilowatt-hour is a unit of energy equal to 3,600,000 joules (J), the base unit for energy. Equal to 3.6 Megajoules (1,000 Wh). [1]

The kilowatt-hour is classified as a metric and SI-compatible unit of energy. Kilowatt-hours can be abbreviated as kWh; for example, 1 kilowatt-hour can be written as 1 kWh.

In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilowatt-hour (kWh) a convenient decimal multiple of the joule (J).

In practice, kilowatt-hours (kWh) are widely used across large-scale industrial, bulk, and macro-level energy specifications within SI metric workflows, engineering documentation, and technical data sheets.

Learn more about kilowatt-hours in our Energy Converter.

What Is an Ampere-hour?

An ampere-hour is a unit of electric charge equal to 3,600 coulombs (C), the base unit for electric charge. Battery charge capacity unit equal to 3,600 Coulombs (1,000 mAh). [2]

The ampere-hour is classified as a standard unit of electric charge. Ampere-hours can be abbreviated as Ah; for example, 1 ampere-hour can be written as 1 Ah.

When working with ampere-hours (Ah) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, ampere-hours (Ah) are widely used across large-scale industrial, bulk, and macro-level electric charge specifications within international standard workflows, engineering documentation, and technical data sheets.

Learn more about ampere-hours in our Electric Charge Converter.

When converting energy between kilowatt-hours (kWh) and ampere-hours (Ah), keep full floating-point precision (1 kWh = 83.3333333 Ah; 1 Ah = 0.012 kWh) during intermediate calculations and round only the final ampere-hour figure to match your instrument tolerance.

More Kilowatt-hour & Ampere-hour Conversions

Need to calculate in the opposite direction? Use our ampere-hours to kilowatt-hours converter (Ah to kWh) to switch your starting unit immediately. You can also explore related tools such as converting milliampere-hours to ampere-hours, converting watt-hours to ampere-hours, or converting kilowatt-hours to joules.

Convert from Kilowatt-hours

Convert to Ampere-hours

Frequently Asked Questions

There are 83.33333 ampere-hours (Ah) in 1 kilowatt-hour (kWh). Conversely, 1 ampere-hour (Ah) is equal to 0.012 kilowatt-hours (kWh).

Energy Converter

Quick Info

Direct Factor: 1 kilowatt-hour (kWh) equals 83.33333 ampere-hours (Ah).
Inverse Factor: 1 ampere-hour (Ah) equals 0.012 kilowatt-hours (kWh).
Formula: ampere-hours = kilowatt-hours × 83.33333.
Verified Precision: Anchored to official NIST SP 811 and ISO/IEC 80000 standards.

Units Comparison

Kilowatt-hour (kWh)

Equal to 3.6 Megajoules (1,000 Wh).

Ampere-hour (Ah)

Battery charge capacity unit equal to 3,600 Coulombs (1,000 mAh).

Joule (J)

Coherent SI unit of energy and work (1 W·s = 1 N·m).

References

[1]NIST CODATA · CODATA Energy & Thermodynamic Constants
Source
[2]NIST SP 811 · NIST SP 811 App. B.9 (Energy, Work & Heat)
Source
[3]BIPM · Derived SI Unit: Joule (J)
Source

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References

NIST · BIPM · ISO

[1]
NIST CODATA (CODATA Energy & Thermodynamic Constants)·Energy Metrology Standard — Kilowatt-hours (kWh) to Ampere-hours (Ah)
NIST CODATA Standard
[2]
NIST SP 811 (NIST SP 811 App. B.9 (Energy, Work & Heat))·Unit Specifications: Kilowatt-hour (kWh) & Ampere-hour (Ah)
NIST SP 811 Specification
[3]
BIPM (Derived SI Unit: Joule (J))·Conversion Factors & Mathematical Basis (kWh to Ah)
BIPM Reference

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