OmniConvert
Power • NIST Exact

BTUs per Hour → Watts

BTU/h → W

Enter any value for instant conversion. Click on the result to copy with unit.

Reverse Conversion

NIST Exact

Based on U.S. National Institute of Standards

Privacy First

All calculations run in your browser

Instant Results

Real-time conversion as you type

Works Offline

No internet connection required

BTUs per Hour to Watts Formula

To convert from BTUs per Hour to Watts, you can use the following formula:

Watts = BTUs per Hour × NaN

This means you need to multiply your BTUs per Hour value by NaN to get the equivalent value in Watts.

BTU/h → W Reference Table

BTU/h W
0.001 BTU/h 0.0002930710702 W
0.002 BTU/h 0.0005861421403 W
0.003 BTU/h 0.0008792132105 W
0.004 BTU/h 0.001172284281 W
0.005 BTU/h 0.001465355351 W
0.006 BTU/h 0.001758426421 W
0.007 BTU/h 0.002051497491 W
0.008 BTU/h 0.002344568561 W
0.009 BTU/h 0.002637639632 W
0.01 BTU/h 0.002930710702 W
0.02 BTU/h 0.005861421403 W
0.03 BTU/h 0.008792132105 W
0.04 BTU/h 0.01172284281 W
0.05 BTU/h 0.01465355351 W
0.06 BTU/h 0.01758426421 W
0.07 BTU/h 0.02051497491 W
0.08 BTU/h 0.02344568561 W
0.09 BTU/h 0.02637639632 W
0.1 BTU/h 0.02930710702 W
0.2 BTU/h 0.05861421403 W
0.3 BTU/h 0.08792132105 W
0.4 BTU/h 0.1172284281 W
0.5 BTU/h 0.1465355351 W
0.6 BTU/h 0.1758426421 W
0.7 BTU/h 0.2051497491 W
0.8 BTU/h 0.2344568561 W
0.9 BTU/h 0.2637639632 W
1 BTU/h 0.2930710702 W
1.5 BTU/h 0.4396066053 W
2 BTU/h 0.5861421403 W
2.5 BTU/h 0.7326776754 W
3 BTU/h 0.8792132105 W
3.5 BTU/h 1.025748746 W
4 BTU/h 1.172284281 W
4.5 BTU/h 1.318819816 W
5 BTU/h 1.465355351 W
5.5 BTU/h 1.611890886 W
6 BTU/h 1.758426421 W
6.5 BTU/h 1.904961956 W
7 BTU/h 2.051497491 W
7.5 BTU/h 2.198033026 W
8 BTU/h 2.344568561 W
8.5 BTU/h 2.491104096 W
9 BTU/h 2.637639632 W
9.5 BTU/h 2.784175167 W
10 BTU/h 2.930710702 W
11 BTU/h 3.223781772 W
12 BTU/h 3.516852842 W
13 BTU/h 3.809923912 W
14 BTU/h 4.102994982 W
15 BTU/h 4.396066053 W
16 BTU/h 4.689137123 W
17 BTU/h 4.982208193 W
18 BTU/h 5.275279263 W
19 BTU/h 5.568350333 W
20 BTU/h 5.861421403 W
25 BTU/h 7.326776754 W
30 BTU/h 8.792132105 W
35 BTU/h 10.25748746 W
40 BTU/h 11.72284281 W
45 BTU/h 13.18819816 W
50 BTU/h 14.65355351 W
55 BTU/h 16.11890886 W
60 BTU/h 17.58426421 W
65 BTU/h 19.04961956 W
70 BTU/h 20.51497491 W
75 BTU/h 21.98033026 W
80 BTU/h 23.44568561 W
85 BTU/h 24.91104096 W
90 BTU/h 26.37639632 W
95 BTU/h 27.84175167 W
100 BTU/h 29.30710702 W
120 BTU/h 35.16852842 W
125 BTU/h 36.63388377 W
130 BTU/h 38.09923912 W
140 BTU/h 41.02994982 W
150 BTU/h 43.96066053 W
160 BTU/h 46.89137123 W
175 BTU/h 51.28743728 W
180 BTU/h 52.75279263 W
200 BTU/h 58.61421403 W
225 BTU/h 65.94099079 W
250 BTU/h 73.26776754 W
275 BTU/h 80.5945443 W
300 BTU/h 87.92132105 W
350 BTU/h 102.5748746 W
400 BTU/h 117.2284281 W
450 BTU/h 131.8819816 W
500 BTU/h 146.5355351 W
600 BTU/h 175.8426421 W
700 BTU/h 205.1497491 W
750 BTU/h 219.8033026 W
800 BTU/h 234.4568561 W
900 BTU/h 263.7639632 W
1000 BTU/h 293.0710702 W
1200 BTU/h 351.6852842 W
1250 BTU/h 366.3388377 W
1500 BTU/h 439.6066053 W
1750 BTU/h 512.8743728 W
2000 BTU/h 586.1421403 W
2500 BTU/h 732.6776754 W
3000 BTU/h 879.2132105 W
4000 BTU/h 1172.284281 W
4500 BTU/h 1318.819816 W
5000 BTU/h 1465.355351 W
6000 BTU/h 1758.426421 W
7000 BTU/h 2051.497491 W
7500 BTU/h 2198.033026 W
8000 BTU/h 2344.568561 W
9000 BTU/h 2637.639632 W
10000 BTU/h 2930.710702 W
15000 BTU/h 4396.066053 W
20000 BTU/h 5861.421403 W
25000 BTU/h 7326.776754 W
50000 BTU/h 14653.55351 W
75000 BTU/h 21980.33026 W
100000 BTU/h 29307.10702 W

Values based on NIST SP 811 conversion factors

Why Convert BTUs per Hour to Watts?

Converting between btus per hour (BTU/h) and watts (W) is one of the most common power conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert BTU/h to W saves time and prevents errors.

Power conversions (BTU/h to W) are essential for automotive enthusiasts, electrical engineers, and athletes. Car buyers frequently convert horsepower to kilowatts to compare engine performance across international brands. In electrical engineering, sizing generators and motors requires consistent power units to prevent overloads and ensure compatibility. Cyclists and rowers use power meters to track output in watts, converting these figures to estimate calorie burn or compare efforts. Misinterpreting power ratings can result in buying underpowered equipment or damaging electrical systems, highlighting the need for accurate conversion tools.

How to Convert BTUs per Hour to Watts

To convert btus per hour to watts, use the following formula:

W = BTU/h × 0.2930710702

Example: 1 BTU/h = 0.2930710702 W

For example, 5 BTU/h = 1.465355351 W, 10 BTU/h = 2.930710702 W, and 100 BTU/h = 29.30710702 W. For larger values, 1000 BTU/h = 293.0710702 W. Conversely, 1 W = 3.412141633 BTU/h. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Mistakes to Avoid

  • kW vs kWh: kW is power (rate), kWh is energy (total used).
  • HP variations: Mechanical HP (~745.7W) vs Metric HP (~735.5W).
  • Apparent Power: Watts vs Volt-Amps (VA) differ due to power factor.

Pro Tips

  • LED bulbs: A 10W LED replaces a 60W incandescent (saves energy).
  • Appliance labels: Check the back label for Wattage to avoid overloading strips.
  • Solar panels: Ratings are 'Peak Watts' (ideal conditions), expect less in reality.

What is a BTU per Hour?

A unit of power representing energy rate (BTU/h).

HVAC appliance ratings.

What is a Watt?

The watt (W) is the SI derived unit of power. Defined as one joule per second. Named after James Watt.

Watts are used universally to measure the rate of energy transfer, commonly for light bulbs, electronics, and small appliances.

Frequently Asked Questions

Power More Conversions

kW → hphp → kWW → kWkW → Whp → WW → hp

Ready to convert? Try our free calculator now.

Start Converting

Need File Conversion?

Convert images and documents between formats — JPG, PNG, WebP, PDF, and more. 100% client-side, your files never leave your browser.

Try File Converter →