How do I convert J to kWh?

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

What is the formula for J to kWh?

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

When should I use J vs kWh?

J and kWh 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 J to kWh

Use the live converter below to translate between Joule (J) and Kilowatt Hour (kWh). 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

J → kWh

Joule

Kilowatt Hour

kWh

Rounded result (4 decimals max)

Formula

1 J = 0 kWh

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 kWh to J.

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J to kWh quick table

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

Joule (J)	Kilowatt Hour (kWh)
0.25 J	6.94444×10^-8 kWh
0.5 J	0 kWh
1 J	0 kWh
2 J	0 kWh
5 J	0 kWh
10 J	0 kWh
25 J	0 kWh
100 J	0 kWh

kWh back to J

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

Kilowatt Hour (kWh)	Joule (J)
0.25 kWh	900,000 J
0.5 kWh	1,800,000 J
1 kWh	3,600,000 J
2 kWh	7,200,000 J
5 kWh	18,000,000 J
10 kWh	36,000,000 J
25 kWh	90,000,000 J
100 kWh	360,000,000 J

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