Foot-Pound to Kiloton of TNT Converter

Energy Converter

27 units available

Decimals:

From

To

3.240483e-13

1 ft·lbf = 3.240483e-13 ktTNT

Formula:

ktTNT = ft·lbf × 3.240483e-13

With your value: 1 ft·lbf = 3.240483e-13 ktTNT

How big is that?

Everyday references on a logarithmic scale, all expressed in foot-pound so you can sanity-check the result.

Heartbeat (1/1.4 your value)0.738 ft·lbf

Your value1.00 ft·lbf

AA battery charge (7.4e+3× your value)7.38e+3 ft·lbf

Slice of bread (2.1e+5× your value)2.07e+5 ft·lbf

Daily food intake (6.2e+6× your value)6.20e+6 ft·lbf

Litre of petrol (2.5e+7× your value)2.52e+7 ft·lbf

Other Foot-Pound to Kiloton of TNT conversions

2 ft·lbf to ktTNT 3 ft·lbf to ktTNT 4 ft·lbf to ktTNT 5 ft·lbf to ktTNT 6 ft·lbf to ktTNT 7 ft·lbf to ktTNT 8 ft·lbf to ktTNT

Foot-Pound to Kiloton of TNT Conversion Table

Foot-Pound (ft·lbf)	Kiloton of TNT (ktTNT)
0.5	1.620241e-13
1	3.240483e-13
2	6.480965e-13
5	1.620241e-12
10	3.240483e-12
15	4.860724e-12
20	6.480965e-12
25	8.101207e-12
50	1.620241e-11
100	3.240483e-11
250	8.101207e-11
500	1.620241e-10
1000	3.240483e-10

Kiloton of TNT to Foot-Pound Conversion Table

Kiloton of TNT (ktTNT)	Foot-Pound (ft·lbf)
0.5	1.542980e+12
1	3.085960e+12
2	6.171920e+12
5	1.542980e+13
10	3.085960e+13
15	4.628940e+13
20	6.171920e+13
25	7.714900e+13
50	1.542980e+14
100	3.085960e+14
250	7.714900e+14
500	1.542980e+15
1000	3.085960e+15

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.

Foot-Pound (ft·lbf)

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

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

How to Convert Foot-Pound to Kiloton of TNT

To convert from Foot-Pound (ft·lbf) to Kiloton of TNT (ktTNT), multiply the value by 3.240483e-13.

Formula: ktTNT = ft·lbf × 3.240483e-13

Reverse: ft·lbf = ktTNT × 3.085960e+12

Step-by-Step Example

Start with your value in Foot-Pound. For example: 5 ft·lbf
Multiply by the conversion factor: 5 x 3.240483e-13
The result is: 1.620241e-12 ktTNT

About Foot-Pound

The foot-pound (ft·lbf) is a unit of energy and work. One foot-pound equals 1.355817948 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 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.

Frequently Asked Questions

How many Kiloton of TNT are in 1 Foot-Pound?

There are exactly 3.240483e-13 Kiloton of TNT in 1 Foot-Pound. This means the conversion factor from Foot-Pound to Kiloton of TNT is 3.240483e-13.

What is the formula to convert Foot-Pound to Kiloton of TNT?

The formula to convert Foot-Pound to Kiloton of TNT is: ktTNT = ft·lbf × 3.240483e-13. For example, to convert 10 Foot-Pound to Kiloton of TNT, you would multiply 10 by 3.240483e-13.

What is a Foot-Pound?