Horsepower-Hour to Megaton of TNT Converter

Energy Converter

27 units available

Decimals:

From

To

6.416156e-10

1 hp·h = 6.416156e-10 MtTNT

Formula:

MtTNT = hp·h × 6.416156e-10

With your value: 1 hp·h = 6.416156e-10 MtTNT

How big is that?

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

Heartbeat (1/2.7e+6 your value)3.73e-7 hp·h

AA battery charge (1/2.7e+2 your value)0.00373 hp·h

Slice of bread (1/9.6 your value)0.104 hp·h

Your value1.00 hp·h

Daily food intake (3.1× your value)3.13 hp·h

Litre of petrol (13× your value)12.7 hp·h

Other Horsepower-Hour to Megaton of TNT conversions

2 hp·h to MtTNT 3 hp·h to MtTNT 4 hp·h to MtTNT 5 hp·h to MtTNT 6 hp·h to MtTNT 7 hp·h to MtTNT 8 hp·h to MtTNT

Horsepower-Hour to Megaton of TNT Conversion Table

Horsepower-Hour (hp·h)	Megaton of TNT (MtTNT)
0.5	3.208078e-10
1	6.416156e-10
2	1.283231e-9
5	3.208078e-9
10	6.416156e-9
15	9.624234e-9
20	1.283231e-8
25	1.604039e-8
50	3.208078e-8
100	6.416156e-8
250	1.604039e-7
500	3.208078e-7
1000	6.416156e-7

Megaton of TNT to Horsepower-Hour Conversion Table

Megaton of TNT (MtTNT)	Horsepower-Hour (hp·h)
0.5	779,282,836.508
1	1,558,565,673.015999
2	3,117,131,346.031999
5	7,792,828,365.079996
10	15,585,656,730.159992
15	23,378,485,095.23999
20	31,171,313,460.319984
25	38,964,141,825.39998
50	77,928,283,650.79996
100	155,856,567,301.5999
250	389,641,418,253.9998
500	779,282,836,507.9996
1000	1.558566e+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.

Horsepower-Hour (hp·h)

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

Megaton of TNT (MtTNT)

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 Horsepower-Hour to Megaton of TNT

To convert from Horsepower-Hour (hp·h) to Megaton of TNT (MtTNT), multiply the value by 6.416156e-10.

Formula: MtTNT = hp·h × 6.416156e-10

Reverse: hp·h = MtTNT × 1.558566e+9

Step-by-Step Example

Start with your value in Horsepower-Hour. For example: 5 hp·h
Multiply by the conversion factor: 5 x 6.416156e-10
The result is: 3.208078e-9 MtTNT

About Horsepower-Hour

The horsepower-hour (hp·h) is a unit of energy and work. One horsepower-hour equals 2.684520 × 10^+6 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 Megaton of TNT

The megaton of tnt (MtTNT) is a unit of energy and work. One megaton of tnt equals 4.184000 × 10^+15 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 Megaton of TNT are in 1 Horsepower-Hour?

There are exactly 6.416156e-10 Megaton of TNT in 1 Horsepower-Hour. This means the conversion factor from Horsepower-Hour to Megaton of TNT is 6.416156e-10.

What is the formula to convert Horsepower-Hour to Megaton of TNT?

The formula to convert Horsepower-Hour to Megaton of TNT is: MtTNT = hp·h × 6.416156e-10. For example, to convert 10 Horsepower-Hour to Megaton of TNT, you would multiply 10 by 6.416156e-10.

What is a Horsepower-Hour?