BTU (th) to Ton of TNT Converter

Energy Converter

27 units available

Decimals:

From

To

2.519957e-7

1 BTU = 2.519957e-7 tTNT

Formula:

tTNT = BTU × 2.519957e-7

With your value: 1 BTU = 2.519957e-7 tTNT

How big is that?

Everyday references on a logarithmic scale, all expressed in btu (th) so you can sanity-check the result.

Heartbeat (1/1.1e+3 your value)0.000948 BTU

Your value1.00 BTU

AA battery charge (9.5× your value)9.48 BTU

Slice of bread (2.7e+2× your value)266 BTU

Daily food intake (8.0e+3× your value)7.97e+3 BTU

Litre of petrol (3.2e+4× your value)3.24e+4 BTU

Other BTU (th) to Ton of TNT conversions

2 BTU to tTNT 3 BTU to tTNT 4 BTU to tTNT 5 BTU to tTNT 6 BTU to tTNT 7 BTU to tTNT 8 BTU to tTNT

BTU (th) to Ton of TNT Conversion Table

BTU (th) (BTU)	Ton of TNT (tTNT)
0.5	1.259978e-7
1	2.519957e-7
2	5.039914e-7
5	1.259978e-6
10	2.519957e-6
15	3.779935e-6
20	5.039914e-6
25	6.299892e-6
50	1.259978e-5
100	2.519957e-5
250	6.299892e-5
500	0.000126
1000	0.000252

Ton of TNT to BTU (th) Conversion Table

Ton of TNT (tTNT)	BTU (th) (BTU)
0.5	1,984,160.8574
1	3,968,321.714801
2	7,936,643.429601
5	19,841,608.574003
10	39,683,217.148006
15	59,524,825.722009
20	79,366,434.296012
25	99,208,042.870015
50	198,416,085.740029
100	396,832,171.480059
250	992,080,428.700147
500	1,984,160,857.400294
1000	3,968,321,714.800589

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.

BTU (th) (BTU)

Energy

Exact conversion

The International Table BTU is exactly 1055.055 852 62 J.

Thermochemical and 39 °F BTU definitions differ by up to 0.2 %.

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 BTU (th) to Ton of TNT

To convert from BTU (th) (BTU) to Ton of TNT (tTNT), multiply the value by 2.519957e-7.

Formula: tTNT = BTU × 2.519957e-7

Reverse: BTU = tTNT × 3,968,321.7148005883

Step-by-Step Example

Start with your value in BTU (th). For example: 5 BTU
Multiply by the conversion factor: 5 x 2.519957e-7
The result is: 1.259978e-6 tTNT

About BTU (th)

The btu (th) (BTU) is a unit of energy and work. One btu (th) equals 1054.35 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 BTU (th)?

There are exactly 2.519957e-7 Ton of TNT in 1 BTU (th). This means the conversion factor from BTU (th) to Ton of TNT is 2.519957e-7.

What is the formula to convert BTU (th) to Ton of TNT?

The formula to convert BTU (th) to Ton of TNT is: tTNT = BTU × 2.519957e-7. For example, to convert 10 BTU (th) to Ton of TNT, you would multiply 10 by 2.519957e-7.

What is a BTU (th)?