Watt-Hour to Erg Converter

Energy Converter

27 units available

Decimals:

From

To

36,000,000,000

1 Wh = 36,000,000,000 erg

Formula:

erg = Wh × 3.600000e+10

With your value: 1 Wh = 36,000,000,000 erg

How big is that?

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

Heartbeat (1/3.6e+3 your value)0.000278 Wh

Your value1.00 Wh

AA battery charge (2.8× your value)2.78 Wh

Slice of bread (78× your value)77.8 Wh

Daily food intake (2.3e+3× your value)2.33e+3 Wh

Litre of petrol (9.5e+3× your value)9.50e+3 Wh

Other Watt-Hour to Erg conversions

2 Wh to erg 3 Wh to erg 4 Wh to erg 5 Wh to erg 6 Wh to erg 7 Wh to erg 8 Wh to erg

Watt-Hour to Erg Conversion Table

Watt-Hour (Wh)	Erg (erg)
0.5	18,000,000,000
1	36,000,000,000
2	72,000,000,000
5	180,000,000,000
10	360,000,000,000
15	540,000,000,000
20	720,000,000,000
25	900,000,000,000
50	1.800000e+12
100	3.600000e+12
250	9.000000e+12
500	1.800000e+13
1000	3.600000e+13

Erg to Watt-Hour Conversion Table

Erg (erg)	Watt-Hour (Wh)
0.5	1.388889e-11
1	2.777778e-11
2	5.555556e-11
5	1.388889e-10
10	2.777778e-10
15	4.166667e-10
20	5.555556e-10
25	6.944444e-10
50	1.388889e-9
100	2.777778e-9
250	6.944444e-9
500	1.388889e-8
1000	2.777778e-8

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.

Watt-Hour (Wh)

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 Watt-Hour to Erg

To convert from Watt-Hour (Wh) to Erg (erg), multiply the value by 36,000,000,000.

Formula: erg = Wh × 3.600000e+10

Reverse: Wh = erg × 2.777778e-11

Step-by-Step Example

Start with your value in Watt-Hour. For example: 5 Wh
Multiply by the conversion factor: 5 x 36,000,000,000
The result is: 180,000,000,000 erg

About Watt-Hour

The watt-hour (Wh) is a unit of energy and work. One watt-hour equals 3600 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 Watt-Hour?

There are exactly 36,000,000,000 Erg in 1 Watt-Hour. This means the conversion factor from Watt-Hour to Erg is 36,000,000,000.

What is the formula to convert Watt-Hour to Erg?

The formula to convert Watt-Hour to Erg is: erg = Wh × 3.600000e+10. For example, to convert 10 Watt-Hour to Erg, you would multiply 10 by 36,000,000,000.

What is a Watt-Hour?