Convert energy units — joules, kilowatt-hours, calories, BTU, electron volts and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 erg | 2.778e-20 MWh | |
| 0.01 erg | 2.778e-19 MWh | |
| 0.1 erg | 2.778e-18 MWh | |
| 1 erg | 2.778e-17 MWh | |
| 5 erg | 1.389e-16 MWh | |
| 10 erg | 2.778e-16 MWh | |
| 50 erg | 1.389e-15 MWh | |
| 100 erg | 2.778e-15 MWh | |
| 1000 erg | 2.778e-14 MWh |
Formula: Megawatt-Hour = Erg × 2.7778e-17
Multiply any erg value by 2.7778e-17 to get megawatt-hour.
Reverse: Erg = Megawatt-Hour × 3.6000e16
Common erg values — factor: 1 erg = 2.7778e-17 MWh
| Erg (erg) | Megawatt-Hour (MWh) | Context |
|---|---|---|
| 1 erg | 2.778e-17 MWh | 1 erg |
| 100 erg | 2.778e-15 MWh | 100 erg |
| 1e+04 erg | 2.778e-13 MWh | 1 mJ |
| 1e+06 erg | 2.778e-11 MWh | 100 mJ |
| 1e+07 erg | 2.778e-10 MWh | 1 J |
| 1e+08 erg | 2.778e-09 MWh | 10 J |
| 1.000e+10 erg | 2.778e-07 MWh | 1 kJ |
| 1.000e+12 erg | 2.778e-05 MWh | 100 kJ |
| 1.000e+14 erg | 0.002778 MWh | 10 MJ |
| 1.000e+17 erg | 2.778 MWh | 1 GJ |
| 1.000e+20 erg | 2,778 MWh | 100 GJ |
| 1.000e+23 erg | 2.778e+06 MWh | 10 TJ |
| 1.000e+26 erg | 2.778e+09 MWh | 1 PJ |
| 1.000e+30 erg | 2.778e+13 MWh | 1 EJ |
| 1.000e+33 erg | 2.778e+16 MWh | 1 ZJ |
1 erg = 2.7778e-17 MWh. Memorize for instant estimates.
Use 2.7778e-17 as a quick mental multiplier.
Multiply result by 3.6000e16 to recover the original erg value.
Reports generation output and fuel consumption in MWh.
Balances supply and demand in real time using MWh dispatch orders.
Buys and sells electricity in MWh on wholesale power markets.
Models solar and wind farm annual output in MWh for investors.
Monitors and reports monthly energy consumption in MWh.
Calculates Scope 2 emissions from electricity use in MWh.
The erg is the unit of energy in the CGS (centimeter-gram-second) system, equal to exactly 10⁻⁷ joules. It was defined by the British Association for the Advancement of Science in 1882 as the work done by a force of one dyne over one centimeter.
Ergs were widely used in 19th and early 20th century physics before SI standardization. They remain in use in astrophysics (stellar luminosities in erg/s) and some older scientific literature.
Interesting fact: The Sun radiates about 3.8 × 10³³ ergs per second. A mosquito in flight exerts about 100 ergs of energy per wingbeat. One joule = 10,000,000 ergs exactly.
The megawatt-hour (MWh) equals 1,000 kWh or 3.6 × 10⁹ joules. It is the standard unit for utility-scale electricity generation, large industrial consumers, and grid-level energy storage.
Power plants, wind farms, and solar installations are rated and billed in MWh. A 2 MW wind turbine generates about 6 MWh per day on average. Large data centers consume thousands of MWh per month.
Interesting fact: The Hoover Dam generates about 4,000 MWh per hour. A single nuclear power plant produces about 8,000 MWh per hour. World electricity consumption is approximately 25,000 TWh (25 billion MWh) per year.
Converting erg to megawatt-hour is common across energy, nutrition, engineering, and science. Different sectors use different energy units — joules in physics, kcal in nutrition, kWh in electricity, and BTU in HVAC — making accurate conversion essential for cross-disciplinary work and international comparisons.
Quick reference: 5 erg = 1.3889e-16 MWh and 10 erg = 2.7778e-16 MWh. Reverse: 1 MWh = 3.6000e16 erg. Exact factor: 1 erg = 2.7778e-17 MWh.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.