How do I convert kWh to cal?

Use the formula shown above or enter a value to see kWh converted to cal instantly.

What is the formula for kWh to cal?

The converter calculates cal by applying the category-specific conversion factor for Energy.

When should I use kWh vs cal?

kWh and cal are both part of the Energy category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Energy Conversion Guide

Convert kWh to cal

Use the live converter below to translate between Kilowatt Hour (kWh) and Calorie (cal). Scroll further for quick examples, formula tips, and related units.

Formula insight: Most unit conversions use a simple multiplication or division by a conversion factor. The calculator shows the exact formula used.

Convert

kWh → cal

Kilowatt Hour

kWh

Calorie

860,420.6501

cal

Rounded result (4 decimals max)

Formula

1 kWh = 860,420.6501 cal

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from cal to kWh.

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kWh to cal quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Kilowatt Hour (kWh)	Calorie (cal)
0.25 kWh	215,105.1625 cal
0.5 kWh	430,210.325 cal
1 kWh	860,420.6501 cal
2 kWh	1,720,841.3002 cal
5 kWh	4,302,103.2505 cal
10 kWh	8,604,206.501 cal
25 kWh	21,510,516.2524 cal
100 kWh	86,042,065.0096 cal

cal back to kWh

Keep the reciprocal handy when double-checking calculations or undoing a conversion.

Calorie (cal)	Kilowatt Hour (kWh)
0.25 cal	0 kWh
0.5 cal	0 kWh
1 cal	0 kWh
2 cal	0 kWh
5 cal	0 kWh
10 cal	0 kWh
25 cal	0 kWh
100 cal	0.0001 kWh

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