Calories per Second to Watts

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

What is the cal/s → W Converter?

This tool converts Calorie per Second (cal/s) 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 cal/s = 4.187 W. Multiply any cal/s value by 4.187 to get W.

Understanding the Units

Calorie per Second (cal/s)

Small thermal power unit used in scientific experiments and calorimetry. Equal to 4.1868 watts.

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

Calorimetry

Convert experimental thermal output into SI power for reports.

Thermal Analysis

Relate heat-flow measurements to watts for engineering work.

Science Education

Teach and check thermal-power calculations in physics and chemistry.

How to Use

Converting cal/s to W takes just a few seconds:

Enter the value

Type your Calorie per Second 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 cal/s.

Conversion Formula

Formula: W = cal/s × 4.187. To reverse: cal/s = W × 0.2388.

Worked Example

For example, 1 cal/s × 4.187 = 4.19 W.

Quick Reference Table

Common cal/s-to-W conversions at a glance:

cal/s	W
1 cal/s	4.19 W
5 cal/s	20.93 W
10 cal/s	41.87 W
25 cal/s	104.67 W
50 cal/s	209.34 W
100 cal/s	418.68 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 cal/s to W?

Multiply the cal/s value by 4.187. For example, 1 cal/s = 4.187 W.

What is the formula for cal/s to W?

The formula is W = cal/s × 4.187. To convert back, use cal/s = W × 0.2388.

What is Calorie per Second?

Small thermal power unit used in scientific experiments and calorimetry. Equal to 4.1868 watts.

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.