Kiloton of TNT to Kilocalorie Converter

Energy Converter

27 units available

Decimals:

From

To

1,000,000,000

1 ktTNT = 1,000,000,000 kcal

Formula:

kcal = ktTNT × 1.000000e+9

With your value: 1 ktTNT = 1,000,000,000 kcal

How big is that?

Everyday references on a logarithmic scale, all expressed in kiloton of tnt so you can sanity-check the result.

Heartbeat (1/4.2e+12 your value)2.39e-13 ktTNT

AA battery charge (1/4.2e+8 your value)2.39e-9 ktTNT

Slice of bread (1/1.5e+7 your value)6.69e-8 ktTNT

Daily food intake (1/5.0e+5 your value)0.00000201 ktTNT

Litre of petrol (1/1.2e+5 your value)0.00000817 ktTNT

Your value1.00 ktTNT

Other Kiloton of TNT to Kilocalorie conversions

2 ktTNT to kcal 3 ktTNT to kcal 4 ktTNT to kcal 5 ktTNT to kcal 6 ktTNT to kcal 7 ktTNT to kcal 8 ktTNT to kcal

Kiloton of TNT to Kilocalorie Conversion Table

Kiloton of TNT (ktTNT)	Kilocalorie (kcal)
0.5	500,000,000
1	1,000,000,000
2	2,000,000,000
5	5,000,000,000
10	10,000,000,000
15	15,000,000,000
20	20,000,000,000
25	25,000,000,000
50	50,000,000,000
100	100,000,000,000
250	250,000,000,000
500	500,000,000,000
1000	1.000000e+12

Kilocalorie to Kiloton of TNT Conversion Table

Kilocalorie (kcal)	Kiloton of TNT (ktTNT)
0.5	5.000000e-10
1	1.000000e-9
2	2.000000e-9
5	5.000000e-9
10	1.000000e-8
15	1.500000e-8
20	2.000000e-8
25	2.500000e-8
50	5.000000e-8
100	1.000000e-7
250	2.500000e-7
500	5.000000e-7
1000	1.000000e-6

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Kiloton of TNT (ktTNT)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Kilocalorie (kcal)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Kiloton of TNT to Kilocalorie

To convert from Kiloton of TNT (ktTNT) to Kilocalorie (kcal), multiply the value by 1,000,000,000.

Formula: kcal = ktTNT × 1.000000e+9

Reverse: ktTNT = kcal × 1.000000e-9

Step-by-Step Example

Start with your value in Kiloton of TNT. For example: 5 ktTNT
Multiply by the conversion factor: 5 x 1,000,000,000
The result is: 5,000,000,000 kcal

About Kiloton of TNT

The kiloton of tnt (ktTNT) is a unit of energy and work. One kiloton of tnt equals 4.184000 × 10^+12 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

About Kilocalorie

The kilocalorie (food Calorie) equals 1,000 calories or 4,184 joules. It is the standard unit for food energy content.

Common uses: nutrition, diet, food labeling.

Frequently Asked Questions

How many Kilocalorie are in 1 Kiloton of TNT?

There are exactly 1,000,000,000 Kilocalorie in 1 Kiloton of TNT. This means the conversion factor from Kiloton of TNT to Kilocalorie is 1,000,000,000.

What is the formula to convert Kiloton of TNT to Kilocalorie?

The formula to convert Kiloton of TNT to Kilocalorie is: kcal = ktTNT × 1.000000e+9. For example, to convert 10 Kiloton of TNT to Kilocalorie, you would multiply 10 by 1,000,000,000.

What is a Kiloton of TNT?