million BTU
Energyexact by definition
The MMBTU is one million International Table BTU, exactly 1.05505585262 × 10⁹ joules, or 1.055 GJ. It is the unit of the wholesale energy market: natural gas futures, LNG cargoes and industrial fuel contracts are all priced per MMBTU.
Watch out: MM means million here and mega everywhere else in the modern world, so MMBTU is a thousand times an "MBTU" in oil and gas usage and equal to it under SI reading. HVAC compounds the problem with MBH, which means a thousand BTU per hour. When a document mixes the two conventions, work from the magnitude of the number rather than the prefix.
| 1 | 1,055,055,900 |
The double M is Roman: M for a thousand, so MM is a thousand thousand. The convention comes from the oil and gas industry, where MCF has always meant a thousand cubic feet and MMCF a million.
One million btu in every energy unit
| 6.58514e+27 | electron volt (eV) | |
| 2.41999e+26 | hartree (Eh) | |
| 6.58514e+24 | kiloelectron volt (keV) | |
| 6.58514e+21 | megaelectron volt (MeV) | |
| 6.58514e+18 | gigaelectron volt (GeV) | |
| 1.05506e+18 | nanojoule (nJ) | |
| 1.05506e+16 | erg (erg) | |
| 6.58514e+15 | teraelectron volt (TeV) | |
| 1.05506e+15 | microjoule (µJ) | |
| 1,055,060,000,000 | millijoule (mJ) | |
| 9,338,030,000 | inch-pound (in·lb) | |
| 1,055,060,000 | joule (J) | |
| 778,169,000 | foot-pound (ft⋅lb) | |
| 252,164,000 | calorie (cal) | |
| 251,996,000 | calorie (International Table) (cal IT) | |
| 1,055,060 | kilojoule (kJ) | |
| 1,000,670 | BTU (thermochemical) (BTU th) | |
| 1,000,000 | British thermal unit (BTU) | |
| 293,071 | watt-hour (Wh) | |
| 252,164 | kilocalorie (kcal) | |
| 1,055.06 | megajoule (MJ) | |
| 393.015 | horsepower-hour (hp·h) | |
| 293.071 | kilowatt-hour (kWh) | |
| 10 | therm (therm) | |
| 1.05506 | gigajoule (GJ) | |
| 1 | million BTU (MMBTU)this unit | |
| 0.293071 | megawatt-hour (MWh) | |
| 0.252164 | ton of TNT (t TNT) | |
| 0.0251996 | tonne of oil equivalent (toe) | |
| 0.00105506 | terajoule (TJ) | |
| 0.000293071 | gigawatt-hour (GWh) | |
| 0.000252164 | kiloton of TNT (kt TNT) | |
| 0.00000105506 | petajoule (PJ) | |
| 2.93071e-07 | terawatt-hour (TWh) | |
| 2.52164e-07 | megaton of TNT (Mt TNT) | |
| 1.00000e-09 | quad (quad) |