The calorie, commonly associated with food energy, originally measured heat in physics. One calorie is the amount of heat needed to raise the temperature of 1 gram of water by 1 degree Celsius. Despite what food packaging might suggest, when we count calories, we are typically referring to kilocalories, which equals 1,000 of these small calories. This means that when you see a snack label stating it’s 100 calories, it’s actually 100 kilocalories, or 100,000 calories in scientific terms!

Interestingly, the calorie became a popular unit due to its early use in nutrition studies and its role in determining food’s energy content. This is crucial, as it helps in planning and maintaining balanced diets and understanding energy expenditure for health and fitness.

Did you know?

The kilowatt-hour (kWh) is a unit of energy that represents the amount of energy consumed or produced. Although commonly associated with electric bills, it has fascinating real-world applications. For example, one kWh can power a 100-watt incandescent light bulb for 10 hours or a modern energy-efficient LED bulb for around 50 hours. Interestingly, the kWh is not just for electricity—it’s also used in renewable energy systems to measure solar and wind power production efficiencies.

Beyond its practical uses, kilowatt-hours reveal intriguing insights into our energy consumption patterns. For instance, the average U.S. home consumes about 877 kWh per month, providing a benchmark for households exploring energy-saving measures. The kWh also serves as a universal language in global energy markets, standardizing costs and outputs across international borders.

Calories

Kilowatt-hours

0 cal

0 kWh

10 cal

1.16222e-5 kWh

20 cal

2.32444e-5 kWh

30 cal

3.48667e-5 kWh

40 cal

4.64889e-5 kWh

50 cal

5.81111e-5 kWh

60 cal

6.97333e-5 kWh

70 cal

8.13556e-5 kWh

80 cal

9.29778e-5 kWh

90 cal

0.0001046 kWh

100 cal

0.000116222 kWh

110 cal

0.000127844 kWh

120 cal

0.000139467 kWh

130 cal

0.000151089 kWh

140 cal

0.000162711 kWh

150 cal

0.000174333 kWh

160 cal

0.000185956 kWh

170 cal

0.000197578 kWh

180 cal

0.0002092 kWh

190 cal

0.000220822 kWh

200 cal

0.000232444 kWh

210 cal

0.000244067 kWh

220 cal

0.000255689 kWh

230 cal

0.000267311 kWh

240 cal

0.000278933 kWh

250 cal

0.000290556 kWh

260 cal

0.000302178 kWh

270 cal

0.0003138 kWh

280 cal

0.000325422 kWh

290 cal

0.000337044 kWh

300 cal

0.000348667 kWh

310 cal

0.000360289 kWh

320 cal

0.000371911 kWh

330 cal

0.000383533 kWh

340 cal

0.000395156 kWh

350 cal

0.000406778 kWh

360 cal

0.0004184 kWh

370 cal

0.000430022 kWh

380 cal

0.000441644 kWh

390 cal

0.000453267 kWh

400 cal

0.000464889 kWh

410 cal

0.000476511 kWh

420 cal

0.000488133 kWh

430 cal

0.000499756 kWh

440 cal

0.000511378 kWh

450 cal

0.000523 kWh

460 cal

0.000534622 kWh

470 cal

0.000546244 kWh

480 cal

0.000557867 kWh

490 cal

0.000569489 kWh

500 cal

0.000581111 kWh

510 cal

0.000592733 kWh

520 cal

0.000604356 kWh

530 cal

0.000615978 kWh

540 cal

0.0006276 kWh

550 cal

0.000639222 kWh

560 cal

0.000650844 kWh

570 cal

0.000662467 kWh

580 cal

0.000674089 kWh

590 cal

0.000685711 kWh

600 cal

0.000697333 kWh

610 cal

0.000708956 kWh

620 cal

0.000720578 kWh

630 cal

0.0007322 kWh

640 cal

0.000743822 kWh

650 cal

0.000755444 kWh

660 cal

0.000767067 kWh

670 cal

0.000778689 kWh

680 cal

0.000790311 kWh

690 cal

0.000801933 kWh

700 cal

0.000813556 kWh

710 cal

0.000825178 kWh

720 cal

0.0008368 kWh

730 cal

0.000848422 kWh

740 cal

0.000860044 kWh

750 cal

0.000871667 kWh

760 cal

0.000883289 kWh

770 cal

0.000894911 kWh

780 cal

0.000906533 kWh

790 cal

0.000918156 kWh

800 cal

0.000929778 kWh

810 cal

0.0009414 kWh

820 cal

0.000953022 kWh

830 cal

0.000964644 kWh

840 cal

0.000976267 kWh

850 cal

0.000987889 kWh

860 cal

0.000999511 kWh

870 cal

0.00101113 kWh

880 cal

0.00102276 kWh

890 cal

0.00103438 kWh

900 cal

0.001046 kWh

910 cal

0.00105762 kWh

920 cal

0.00106924 kWh

930 cal

0.00108087 kWh

940 cal

0.00109249 kWh

950 cal

0.00110411 kWh

960 cal

0.00111573 kWh

970 cal

0.00112736 kWh

980 cal

0.00113898 kWh

990 cal

0.0011506 kWh

1000 cal

0.00116222 kWh

Conversion

Calories to Watt-seconds

Go to converter

Calories to Watt-minutes

Go to converter

Calories to Watt-hours

Go to converter

Calories to Milliwatt-hours

Go to converter

Calories to Megawatt-hours

Go to converter

Calories to Gigawatt-hours

Go to converter

Calories to Joules

Go to converter

Calories to Kilojoules

Go to converter

Calories to Megajoules

Go to converter

Calories to Gigajoules

Go to converter

Calories to Kilocalories

Go to converter

Calories to Kilowatt-hours Conversion

Did you know?

> Calories to Kilowatt-hours Conversion Table

> Other Conversions

:: Energy Units

Did you know? Expand

> Calories to Kilowatt-hours Conversion Table

> Other Conversions

:: Energy Units

:: Spread the Word

Did you know?