Therm to Ton of TNT Converter

Energy Converter

27 units available

Decimals:

From

To

0.025216

1 thm = 0.025216 tTNT

Formula:

tTNT = thm × 0.0252164401

With your value: 1 thm = 0.02521644 tTNT

How big is that?

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

Heartbeat (1/1.1e+8 your value)9.48e-9 thm

AA battery charge (1/1.1e+4 your value)0.0000948 thm

Slice of bread (1/3.8e+2 your value)0.00265 thm

Daily food intake (1/13 your value)0.0796 thm

Litre of petrol (1/3.1 your value)0.324 thm

Your value1.00 thm

Other Therm to Ton of TNT conversions

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

Therm to Ton of TNT Conversion Table

Therm (thm)	Ton of TNT (tTNT)
0.5	0.012608
1	0.025216
2	0.050433
5	0.126082
10	0.252164
15	0.378247
20	0.504329
25	0.630411
50	1.260822
100	2.521644
250	6.30411
500	12.60822
1000	25.21644

Ton of TNT to Therm Conversion Table

Ton of TNT (tTNT)	Therm (thm)
0.5	19.828334
1	39.656668
2	79.313337
5	198.283342
10	396.566683
15	594.850025
20	793.133366
25	991.416708
50	1,982.833416
100	3,965.666831
250	9,914.167078
500	19,828.334157
1000	39,656.668314

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.

Therm (thm)

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 Therm to Ton of TNT

To convert from Therm (thm) to Ton of TNT (tTNT), multiply the value by 0.0252164401.

Formula: tTNT = thm × 0.0252164401

Reverse: thm = tTNT × 39.6566683139

Step-by-Step Example

Start with your value in Therm. For example: 5 thm
Multiply by the conversion factor: 5 x 0.0252164401
The result is: 0.126082 tTNT

About Therm

The therm (thm) is a unit of energy and work. One therm equals 1.055056 × 10^+8 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 Therm?

There are exactly 0.0252164401 Ton of TNT in 1 Therm. This means the conversion factor from Therm to Ton of TNT is 0.0252164401.

What is the formula to convert Therm to Ton of TNT?

The formula to convert Therm to Ton of TNT is: tTNT = thm × 0.0252164401. For example, to convert 10 Therm to Ton of TNT, you would multiply 10 by 0.0252164401.

What is a Therm?