Kiloton of TNT to Horsepower-Hour Converter

Energy Converter

27 units available

Decimals:

From

To

1,558,565.673016

1 ktTNT = 1,558,565.673016 hp·h

Formula:

hp·h = ktTNT × 1,558,565.6730159991

With your value: 1 ktTNT = 1,558,565.673016 hp·h

How big is that?

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

Heartbeat (1/4.2e+12 your value)2.39e-13 ktTNT

AA battery charge (1/4.2e+8 your value)2.39e-9 ktTNT

Slice of bread (1/1.5e+7 your value)6.69e-8 ktTNT

Daily food intake (1/5.0e+5 your value)0.00000201 ktTNT

Litre of petrol (1/1.2e+5 your value)0.00000817 ktTNT

Your value1.00 ktTNT

Other Kiloton of TNT to Horsepower-Hour conversions

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

Kiloton of TNT to Horsepower-Hour Conversion Table

Kiloton of TNT (ktTNT)	Horsepower-Hour (hp·h)
0.5	779,282.836508
1	1,558,565.673016
2	3,117,131.346032
5	7,792,828.36508
10	15,585,656.73016
15	23,378,485.09524
20	31,171,313.46032
25	38,964,141.8254
50	77,928,283.6508
100	155,856,567.3016
250	389,641,418.254
500	779,282,836.508
1000	1,558,565,673.015999

Horsepower-Hour to Kiloton of TNT Conversion Table

Horsepower-Hour (hp·h)	Kiloton of TNT (ktTNT)
0.5	3.208078e-7
1	6.416156e-7
2	1.283231e-6
5	3.208078e-6
10	6.416156e-6
15	9.624234e-6
20	1.283231e-5
25	1.604039e-5
50	3.208078e-5
100	6.416156e-5
250	0.00016
500	0.000321
1000	0.000642

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.

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

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

How to Convert Kiloton of TNT to Horsepower-Hour

To convert from Kiloton of TNT (ktTNT) to Horsepower-Hour (hp·h), multiply the value by 1,558,565.6730159991.

Formula: hp·h = ktTNT × 1,558,565.6730159991

Reverse: ktTNT = hp·h × 6.416156e-7

Step-by-Step Example

Start with your value in Kiloton of TNT. For example: 5 ktTNT
Multiply by the conversion factor: 5 x 1,558,565.6730159991
The result is: 7,792,828.36508 hp·h

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.

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.

Frequently Asked Questions

How many Horsepower-Hour are in 1 Kiloton of TNT?

There are exactly 1,558,565.6730159991 Horsepower-Hour in 1 Kiloton of TNT. This means the conversion factor from Kiloton of TNT to Horsepower-Hour is 1,558,565.6730159991.

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

The formula to convert Kiloton of TNT to Horsepower-Hour is: hp·h = ktTNT × 1,558,565.6730159991. For example, to convert 10 Kiloton of TNT to Horsepower-Hour, you would multiply 10 by 1,558,565.6730159991.

What is a Kiloton of TNT?