BTU per Hour to Watts

Convert BTU per Hour to Watt instantly. Quick and accurate power conversion for electrical, mechanical, and HVAC applications.

What is the BTU/h → W Converter?

This tool converts BTU per Hour (BTU/h) to Watt (W) quickly and accurately. Whether you work with motors, appliances, HVAC systems, or engineering specs, it gives you instant, reliable results right in your browser.

Conversion factor: 1 BTU/h = 0.2931 W. Multiply any BTU/h value by 0.2931 to get W.

Understanding the Units

BTU per Hour (BTU/h)

Common unit for HVAC systems in the United States. Used to rate air conditioners, heaters, and furnace capacity.

Watt (W)

The SI base unit of power. One watt equals one joule per second. Used for light bulbs, small electronics, and precise measurements.

Common Applications

HVAC Sizing

Match air-conditioner and furnace capacity to room and building loads.

Cooling Loads

Convert cooling capacity for AC units and refrigeration systems.

Heating Equipment

Compare heater and burner output across power units.

How to Use

Converting BTU/h to W takes just a few seconds:

Enter the value

Type your BTU per Hour value into the first input field.

Read the result

The Watt result appears instantly in the second field as you type.

Copy or swap

Use the copy button to grab the result, or the swap button (↔) to reverse the direction and convert W back to BTU/h.

Conversion Formula

Formula: W = BTU/h × 0.2931. To reverse: BTU/h = W × 3.412.

Worked Example

For example, 10 BTU/h × 0.2931 = 2.93 W.

Quick Reference Table

Common BTU/h-to-W conversions at a glance:

BTU/h	W
10 BTU/h	2.93 W
50 BTU/h	14.65 W
100 BTU/h	29.31 W
250 BTU/h	73.27 W
500 BTU/h	146.54 W
1000 BTU/h	293.07 W

Features

Instant Conversion

Results update as you type — no convert button needed. Calculations use precise factors for engineering-grade accuracy.

Bidirectional Input

Type in either field and the other updates automatically, so you can convert in whichever direction you need.

Copy Results

One click copies any value to your clipboard for documents, spreadsheets, or specifications.

Many Power Units

Switch the dropdowns to convert among Watts, Kilowatts, Megawatts, Horsepower, BTU/h, Tons of Refrigeration, and more.

Mobile Friendly

Works smoothly on desktop, tablet, and phone — convert power units anywhere.

100% Private

Every calculation runs locally in your browser. No data is stored or sent to any server.

Frequently Asked Questions

How do I convert BTU/h to W?

Multiply the BTU/h value by 0.2931. For example, 1 BTU/h = 0.2931 W.

What is the formula for BTU/h to W?

The formula is W = BTU/h × 0.2931. To convert back, use BTU/h = W × 3.412.

What is BTU per Hour?

Common unit for HVAC systems in the United States. Used to rate air conditioners, heaters, and furnace capacity.

What is Watt?

The SI base unit of power. One watt equals one joule per second. Used for light bulbs, small electronics, and precise measurements.

Is this converter accurate?

Yes. It uses internationally recognized conversion factors with high precision, suitable for engineering, HVAC, and automotive work.

Can I convert other power units?

Yes. Use the dropdown menus to choose from many units including Watts, Kilowatts, Megawatts, Horsepower (hp/PS), BTU/h, Tons of Refrigeration, and more.