Foot-Pound to Erg Converter

Energy Converter

27 units available

Decimals:

From

To

13,558,179.483

1 ft·lbf = 13,558,179.483 erg

Formula:

erg = ft·lbf × 13,558,179.483

With your value: 1 ft·lbf = 13,558,179.483 erg

How big is that?

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

Heartbeat (1/1.4 your value)0.738 ft·lbf

Your value1.00 ft·lbf

AA battery charge (7.4e+3× your value)7.38e+3 ft·lbf

Slice of bread (2.1e+5× your value)2.07e+5 ft·lbf

Daily food intake (6.2e+6× your value)6.20e+6 ft·lbf

Litre of petrol (2.5e+7× your value)2.52e+7 ft·lbf

Other Foot-Pound to Erg conversions

2 ft·lbf to erg 3 ft·lbf to erg 4 ft·lbf to erg 5 ft·lbf to erg 6 ft·lbf to erg 7 ft·lbf to erg 8 ft·lbf to erg

Foot-Pound to Erg Conversion Table

Foot-Pound (ft·lbf)	Erg (erg)
0.5	6,779,089.7415
1	13,558,179.483
2	27,116,358.966
5	67,790,897.415
10	135,581,794.83
15	203,372,692.245
20	271,163,589.66
25	338,954,487.075
50	677,908,974.15
100	1,355,817,948.3
250	3,389,544,870.75
500	6,779,089,741.499999
1000	13,558,179,482.999998

Erg to Foot-Pound Conversion Table

Erg (erg)	Foot-Pound (ft·lbf)
0.5	3.687811e-8
1	7.375621e-8
2	1.475124e-7
5	3.687811e-7
10	7.375621e-7
15	1.106343e-6
20	1.475124e-6
25	1.843905e-6
50	3.687811e-6
100	7.375621e-6
250	1.843905e-5
500	3.687811e-5
1000	7.375621e-5

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.

Foot-Pound (ft·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

Erg (erg)

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 Foot-Pound to Erg

To convert from Foot-Pound (ft·lbf) to Erg (erg), multiply the value by 13,558,179.483.

Formula: erg = ft·lbf × 13,558,179.483

Reverse: ft·lbf = erg × 7.375621e-8

Step-by-Step Example

Start with your value in Foot-Pound. For example: 5 ft·lbf
Multiply by the conversion factor: 5 x 13,558,179.483
The result is: 67,790,897.415 erg

About Foot-Pound

The foot-pound (ft·lbf) is a unit of energy and work. One foot-pound equals 1.355817948 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 Erg

The erg (erg) is a unit of energy and work. One erg equals 1.000000 × 10^-7 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 Erg are in 1 Foot-Pound?

There are exactly 13,558,179.483 Erg in 1 Foot-Pound. This means the conversion factor from Foot-Pound to Erg is 13,558,179.483.

What is the formula to convert Foot-Pound to Erg?

The formula to convert Foot-Pound to Erg is: erg = ft·lbf × 13,558,179.483. For example, to convert 10 Foot-Pound to Erg, you would multiply 10 by 13,558,179.483.

What is a Foot-Pound?