How many calories are in 1 kilocalorie?

1 kcal equals 1000 cal. This is an exact conversion factor defined by NIST.

How do I convert kilocalories to calories?

Multiply the value in kcal by the conversion factor. For example, 10 kcal = 10000 cal. Use our calculator above for instant results.

Is the kilocalories to calories conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

Can I convert kilocalories to calories offline?

Yes! Metric Converter runs entirely in your browser — no internet connection needed after the page loads. Your data never leaves your device, ensuring complete privacy.

What is the difference between kilocalories and calories?

Kilocalories (kcal) and Calories (cal) are both units of energy but belong to different measurement systems. 1 kcal = 1000 cal. Use the converter above to switch between them instantly.

Kilocalories to Calories (kcal → cal) — Free Online Converter

Формула преобразования Килокалории в Калории

Чтобы преобразовать Килокалории в Калории, вы можете использовать следующую формулу:

Калории = Килокалории × 0.001

Это означает, что вам нужно умножить значение Килокалории на 0.001, чтобы получить эквивалентное значение в Калории.

kcal → cal Справочная таблица

kcal	cal
0.01 kcal	10 cal
0.1 kcal	100 cal
0.5 kcal	500 cal
1 kcal	1000 cal
5 kcal	5000 cal
10 kcal	10000 cal
50 kcal	50000 cal
100 kcal	100000 cal
500 kcal	500000 cal
1000 kcal	1000000 cal

Значения основаны на коэффициентах конвертации NIST SP 811

Why Convert Kilocalories to Calories?

Converting between kilocalories (kcal) and calories (cal) is one of the most common energy conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert kcal to cal saves time and prevents errors.

Energy conversions from kcal to cal are crucial for dietitians, physicists, and engineers. In nutrition, understanding the link between calories and joules helps individuals manage their diet and energy intake effectively. In the power sector, converting between kilowatt-hours and British Thermal Units (BTU) is necessary for sizing heating and cooling systems for homes and offices. Physicists rely on precise energy unit conversions to calculate work, heat, and thermodynamic processes. Whether tracking fitness goals or analyzing home energy bills, accurate conversion empowers users to make better health and financial decisions.

How to Convert Kilocalories to Calories

To convert kilocalories to calories, use the following formula:

cal = kcal × 1000

Example: 1 kcal = 1000 cal

For example, 5 kcal = 5000 cal, 10 kcal = 10000 cal, and 100 kcal = 100000 cal. For larger values, 1000 kcal = 1000000 cal. Conversely, 1 cal = 0.001 kcal. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Mistakes to Avoid

Calorie confusion: Food 'Calories' are actually kilocalories (kcal).
Joule scale: 1 kWh is 3.6 million Joules (orders of magnitude difference).
Power vs Energy: mixing up Watts (power) and Watt-hours (energy).

Pro Tips

Food labels: Learn to read kcal; average adult needs ~2000 kcal/day.
Battery capacity: Wh = V * Ah. Useful for comparing different voltage batteries.
Efficiency: Energy cannot be created/destroyed, only converted (with some loss as heat).

What is a Kilocalorie?

A unit of energy equal to 1,000 calories ("Calorie").

Widely used for measuring food energy content.

What is a Calorie?

The calorie (cal) is a pre-SI unit of energy. Historically defined as the heat needed to raise 1 gram of water by 1°C. Food calories are actually kilocalories (kcal).

Calories (specifically kilocalories) are universally used in nutrition to measure the energy content of food and the energy expenditure of physical activity.

Килокалории → Калории