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BTU per hour to Watts

1 BTU per hour = 0.29307 watts · 1 W = 3.4121 BTU/h

1 BTU per hour = 0.29307 watts

How it’s calculated

W = BTU/h × 0.2930710702

  • Multiply the value in BTU per hour by 0.2930710702.
  • To go back, divide by 0.2930710702 (or multiply by 3.412141633).
  • 1 BTU/h = 0.2930710702 W · 1 W = 3.412141633 BTU/h
Show worked solutionFactor, unit cancellation and rounding, step by step

  1. Find the conversion factor

    By definition 1 W = 3.41214163312794 BTU/h. Source: NIST SP 811 / Handbook 44; BIPM SI Brochure (9th ed.).

  2. Multiply by the factor written as a fraction

    Put BTU/h in the denominator so it cancels, leaving W.

  3. Calculate (unrounded)

  4. Round the answer

    Rounded to 5 significant figures.

Answer: 0.29307 W

1 BTU/h in other units

Batch convert BTU/h → W
Results
  1. 1 BTU/h = 0.29307 W
  2. 5 BTU/h = 1.4654 W
  3. 10 BTU/h = 2.9307 W
  4. 25 BTU/h = 7.3268 W

Permanent link to this conversion

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Quick examples

  • 1 BTU per hour = 0.29307 watts
  • 5 BTU per hour = 1.4654 watts
  • 10 BTU per hour = 2.9307 watts
  • 25 BTU per hour = 7.3268 watts
  • 100 BTU per hour = 29.307 watts

About these units

BTU per hour (BTU/h)

US & imperial (identical)

1 BTU/h = 0.2930710702 W

Source: NIST SP 811 / Handbook 44

Watt (W)

SI (metric)

Base unit

Source: BIPM SI Brochure (9th ed.)

BTU per hour to watts conversion table

BTU per hour (BTU/h) to watt (W)
BTU per hour (BTU/h)Watts (W)
0.1 BTU/h0.029307 W
0.5 BTU/h0.14654 W
1 BTU/h0.29307 W
2 BTU/h0.58614 W
3 BTU/h0.87921 W
4 BTU/h1.1723 W
5 BTU/h1.4654 W
6 BTU/h1.7584 W
7 BTU/h2.0515 W
8 BTU/h2.3446 W
9 BTU/h2.6376 W
10 BTU/h2.9307 W
15 BTU/h4.3961 W
20 BTU/h5.8614 W
25 BTU/h7.3268 W
30 BTU/h8.7921 W
40 BTU/h11.723 W
50 BTU/h14.654 W
75 BTU/h21.98 W
100 BTU/h29.307 W
250 BTU/h73.268 W
500 BTU/h146.54 W
1,000 BTU/h293.07 W

Related conversions

Frequently asked questions

How do I convert BTU per hour to watts?

Use W = BTU/h × 0.2930710702. Multiply the value in BTU per hour by 0.2930710702.

How many watts are in 1 BTU per hour?

1 BTU per hour (BTU/h) equals 0.29307 watts (W); more precisely 0.2930710702.

How many BTU per hour are in 1 watt?

1 watt (W) equals 3.4121 BTU per hour (BTU/h); more precisely 3.412141633.

What is 10 BTU/h in W?

10 BTU per hour = 2.9307 watts.

Formula: W = BTU/h × 0.2930710702. Factors last reviewed 2026-10-27.