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Calories to Watt Seconds Converter

Convert calories to watt seconds and back instantly with formula and common values.

cal

Watt Seconds

138.072

Ws

33 cal = 138.072 Ws

Ws = cal × 4.184

Calories to Watt Seconds: 1 cal equals 4.184 Ws. To convert calories to watt seconds, multiply by 4.184 (Ws = cal × 4.184). For example, 10 cal = 41.84 Ws.

How to Convert Calories to Watt Seconds

To convert from calories to watt seconds, multiply the value by 4.184. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Calories to Watt Seconds: Ws = cal × 4.184
  • Watt Seconds to Calories: cal = Ws ÷ 4.184

Calories to Watt Seconds Conversion Chart

Calories (cal)Watt Seconds (Ws)
0.10.4184
0.251.046
0.52.092
14.184
28.368
312.552
520.92
1041.84
2083.68
25104.6
50209.2
100418.4
2501046
10004184

Understanding the Units

What is a Calorie?

The thermochemical calorie equals exactly 4.184 joules; the historical "small" calorie raised one gram of water by one degree Celsius.

Common contexts: chemistry, historical thermodynamics.

What is a Watt Second?

A watt-second is identical to one joule.

Common contexts: photography (flash energy), capacitor ratings.

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FAQ

How do I convert calories to watt seconds?

Multiply by 4.184. For example, 33 cal × 4.184 = 138.072 Ws.

What is the formula for calories to watt seconds?

The formula is: Ws = cal × 4.184.

How many watt seconds are in one calorie?

One calorie equals 4.184 watt seconds.

How many watt seconds are in 1 calory?

1 cal equals 4.184 Ws.

How do you convert calories to watt seconds?

Multiply the calory value by 4.184. Formula: Ws = cal × 4.184.

How many watt seconds are in 5 calories?

5 cal = 20.92 Ws.

How do you convert watt seconds back to calories?

Use the inverse formula: cal = Ws ÷ 4.184. For example, 1 Ws = 0.239006 cal.

What is the difference between Calory and Watt Second?

The thermochemical calorie equals exactly 4.184 joules; the historical "small" calorie raised one gram of water by one degree Celsius. A watt-second is identical to one joule.