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Kilowatt-hours to Watt-hours Converter

Free instant kWh → Wh converter. No signup, no uploads — everything is calculated privately in your browser.

1 kWh = 1,000 watt-hours

Free and instant — every calculation runs in your browser. Nothing is uploaded.

Quick Answer

1 kilowatt-hour equals 1,000 watt-hours. To convert kilowatt-hours to watt-hours, multiply the value by this factor.

Key Facts

  • Reverse: 1 watt-hour = 0.001 kilowatt-hours.

Kilowatt-hours to Watt-hours Formula

Formula: value × 1,000

Prefer to skip the math? Type any value in the converter above and it converts instantly.

Kilowatt-hours to Watt-hours Conversion Table

Kilowatt-hours (kWh)Watt-hours (Wh)
1 kWh1,000 Wh
2 kWh2,000 Wh
5 kWh5,000 Wh
10 kWh10,000 Wh
25 kWh25,000 Wh
50 kWh50,000 Wh
100 kWh100,000 Wh
250 kWh250,000 Wh
500 kWh500,000 Wh
1,000 kWh1,000,000 Wh

Frequently Asked Questions

How do I convert kilowatt-hours to watt-hours?

Enter the value above and the result appears instantly — the calculation runs entirely in your browser. Formula: value × 1,000.

What is the exact kilowatt-hours to watt-hours conversion factor?

1 kilowatt-hour = 1,000 watt-hours (shown to 6 significant figures — the converter itself computes at full precision). The reverse factor is 1 watt-hour = 0.001 kilowatt-hours.

What are some common kilowatt-hours to watt-hours conversions?

1 kWh = 1,000 Wh; 10 kWh = 10,000 Wh; 100 kWh = 100,000 Wh. Use the full conversion table below for more reference values.

Is a calorie the same as a food Calorie?

No — and the capital letter matters. A food Calorie (with a capital C) is a kilocalorie: 1,000 small calories. This converter treats them correctly: 1 kcal = 4.184 kJ = 1,000 cal. Energy labels on food almost always mean kilocalories, even where the label just says "calories".

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