Foot-Pound to Ton of TNT Converter

Energy Converter

27 units available

Decimals:

From

To

3.240483e-10

1 ft·lbf = 3.240483e-10 tTNT

Formula:

tTNT = ft·lbf × 3.240483e-10

With your value: 1 ft·lbf = 3.240483e-10 tTNT

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 Ton of TNT conversions

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

Foot-Pound to Ton of TNT Conversion Table

Foot-Pound (ft·lbf)	Ton of TNT (tTNT)
0.5	1.620241e-10
1	3.240483e-10
2	6.480965e-10
5	1.620241e-9
10	3.240483e-9
15	4.860724e-9
20	6.480965e-9
25	8.101207e-9
50	1.620241e-8
100	3.240483e-8
250	8.101207e-8
500	1.620241e-7
1000	3.240483e-7

Ton of TNT to Foot-Pound Conversion Table

Ton of TNT (tTNT)	Foot-Pound (ft·lbf)
0.5	1,542,980,016.323774
1	3,085,960,032.647549
2	6,171,920,065.295097
5	15,429,800,163.237743
10	30,859,600,326.475487
15	46,289,400,489.71323
20	61,719,200,652.95097
25	77,149,000,816.18872
50	154,298,001,632.37744
100	308,596,003,264.7549
250	771,490,008,161.8871
500	1.542980e+12
1000	3.085960e+12

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

Ton of TNT (tTNT)

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 Ton of TNT

To convert from Foot-Pound (ft·lbf) to Ton of TNT (tTNT), multiply the value by 3.240483e-10.

Formula: tTNT = ft·lbf × 3.240483e-10

Reverse: ft·lbf = tTNT × 3.085960e+9

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-10
The result is: 1.620241e-9 tTNT

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 Ton of TNT

The ton of tnt (tTNT) is a unit of energy and work. One ton of tnt equals 4.184000 × 10^+9 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 Ton of TNT are in 1 Foot-Pound?

There are exactly 3.240483e-10 Ton of TNT in 1 Foot-Pound. This means the conversion factor from Foot-Pound to Ton of TNT is 3.240483e-10.

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

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

What is a Foot-Pound?