Joule to Inch-Pound Converter

Energy Converter

27 units available

Decimals:

From

To

8.850746

1 J = 8.850746 in·lbf

Formula:

in·lbf = J × 8.8507457913

With your value: 1 J = 8.85074579 in·lbf

How big is that?

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

Heartbeat (1.0× your value)1.00 J

Your value1.00 J

AA battery charge (1.0e+4× your value)1.00e+4 J

Slice of bread (2.8e+5× your value)2.80e+5 J

Daily food intake (8.4e+6× your value)8.40e+6 J

Litre of petrol (3.4e+7× your value)3.42e+7 J

Other Joule to Inch-Pound conversions

2 J to in·lbf 3 J to in·lbf 4 J to in·lbf 5 J to in·lbf 6 J to in·lbf 7 J to in·lbf 8 J to in·lbf

Joule to Inch-Pound Conversion Table

Joule (J)	Inch-Pound (in·lbf)
0.5	4.425373
1	8.850746
2	17.701492
5	44.253729
10	88.507458
15	132.761187
20	177.014916
25	221.268645
50	442.53729
100	885.074579
250	2,212.686448
500	4,425.372896
1000	8,850.745791

Inch-Pound to Joule Conversion Table

Inch-Pound (in·lbf)	Joule (J)
0.5	0.056492
1	0.112985
2	0.22597
5	0.564924
10	1.129848
15	1.694772
20	2.259697
25	2.824621
50	5.649241
100	11.298483
250	28.246207
500	56.492415
1000	112.984829

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.

Joule (J)

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

Inch-Pound (in·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

How to Convert Joule to Inch-Pound

To convert from Joule (J) to Inch-Pound (in·lbf), multiply the value by 8.8507457913.

Formula: in·lbf = J × 8.8507457913

Reverse: J = in·lbf × 0.112984829

Step-by-Step Example

Start with your value in Joule. For example: 5 J
Multiply by the conversion factor: 5 x 8.8507457913
The result is: 44.253729 in·lbf

About Joule

The joule is the SI unit of energy. One joule equals the work done when a force of one newton moves an object one meter.

Common uses: physics, electrical engineering, chemistry.

About Inch-Pound

The inch-pound (in·lbf) is a unit of energy and work. One inch-pound equals 0.112984829 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 Inch-Pound are in 1 Joule?

There are exactly 8.8507457913 Inch-Pound in 1 Joule. This means the conversion factor from Joule to Inch-Pound is 8.8507457913.

What is the formula to convert Joule to Inch-Pound?

The formula to convert Joule to Inch-Pound is: in·lbf = J × 8.8507457913. For example, to convert 10 Joule to Inch-Pound, you would multiply 10 by 8.8507457913.

What is a Joule?