Skip to main content
UnitConvertersGo

BTUs per US Gallon to Megajoules per Liter Converter

Enter the fuel efficiency in btus per us gallon below to convert it to megajoules per liter.

Convert BTUs per US Gallon to Megajoules per Liter

Enter a value in btus per us gallon (BTU/gal) to convert to megajoules per liter (MJ/L).

Result
•
0.001393581megajoules per liter
5 BTU/gal = 0.001393581 MJ/L
Result updates automatically
Get Widget
Suggested Conversions
Reference:NIST OWM (SI Units — Length)
[1–3] ↓

BTU per US Gallon to Megajoule per Liter Conversion Table

Table showing various btu per us gallon measurements converted to megajoules per liter. Click any preset value or arrow to load it into the converter.

BTUs per US Gallon (BTU/gal)Megajoules per Liter (MJ/L)
1 BTU/gal0.000278716 MJ/L
2 BTU/gal0.000557433 MJ/L
2.5 BTU/gal0.000696791 MJ/L
5 BTU/gal0.0013936 MJ/L
10 BTU/gal0.0027872 MJ/L
15 BTU/gal0.0041807 MJ/L
20 BTU/gal0.0055743 MJ/L
25 BTU/gal0.0069679 MJ/L
30 BTU/gal0.0083615 MJ/L
50 BTU/gal0.0139358 MJ/L

How to Convert BTUs per US Gallon to Megajoules per Liter

To convert btus per us gallon to megajoules per liter, multiply the fuel efficiency by the following conversion ratio: 0.000278716 megajoules per liter/btu per us gallon.

Since one btu per us gallon is equal to 0.000278716 megajoules per liter, you can use this simple formula to convert:

megajoules per liter = btus per us gallon × 0.000278716

The fuel efficiency in megajoules per liter is equal to the fuel efficiency in btus per us gallon multiplied by 0.000278716.

For example, here's how to convert 5 btus per us gallon to megajoules per liter using the formula above.

megajoules per liter = (5 BTU/gal × 0.000278716) = 0.0013936 MJ/L

How Many Megajoules per Liter Are in a BTU per US Gallon?

There are 0.000278716 megajoules per liter in a btu per us gallon, which is why we use this value in the formula above.

1 BTU/gal = 0.000278716 MJ/L|1 MJ/L = 3,587.8779668 BTU/gal

Our btu per us gallon to megajoule per liter calculator automatically converts your fuel efficiency measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

BTUs per US Gallon and megajoules per liter are both units used to measure fuel efficiency. Keep reading to learn more about each unit.

What Is a BTU per US Gallon?

A btu per us gallon is a unit of fuel efficiency equal to 278,716.28 joules per cubic meter (J/m³), the base unit for fuel efficiency. US liquid fuel energy content unit. [1]

The btu per us gallon is classified as a US customary unit of fuel efficiency. BTUs per US Gallon can be abbreviated as BTU/gal; for example, 1 btu per us gallon can be written as 1 BTU/gal.

When working with btus per us gallon (BTU/gal) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, btus per us gallon (BTU/gal) are widely used across large-scale industrial, bulk, and macro-level fuel efficiency specifications within US customary workflows, engineering documentation, and technical data sheets.

What Is a Megajoule per Liter?

A megajoule per liter is a unit of fuel efficiency equal to 1,000,000,000 joules per cubic meter (J/m³), the base unit for fuel efficiency. Liquid fuel energy density unit (10⁹ J/m³). [2]

The megajoule per liter is classified as a metric and SI-compatible unit of fuel efficiency. Megajoules per Liter can be abbreviated as MJ/L; for example, 1 megajoule per liter can be written as 1 MJ/L.

In the metric system, "mega" is the standard SI prefix for millions, or 10⁶. This makes the megajoule per liter (MJ/L) a convenient decimal multiple of the joule per cubic meter (J/m³).

In practice, megajoules per liter (MJ/L) are widely used across large-scale industrial, bulk, and macro-level fuel efficiency specifications within SI metric workflows, engineering documentation, and technical data sheets.

When converting fuel efficiency between btus per us gallon (BTU/gal) and megajoules per liter (MJ/L), keep full floating-point precision (1 BTU/gal = 0.000278716 MJ/L; 1 MJ/L = 3,587.8779668 BTU/gal) during intermediate calculations and round only the final megajoule per liter figure to match your instrument tolerance.

More BTU per US Gallon & Megajoule per Liter Conversions

Need to calculate in the opposite direction? Use our megajoules per liter to btus per us gallon calculator to switch your starting unit immediately. You can also explore related tools such as converting megajoules per liter to btus per us gallon, converting joules per cubic meter to megajoules per liter, or converting joules per cubic meter to megajoules per cubic meter.

Frequently Asked Questions

There are 0.00027871 megajoules per liter (MJ/L) in 1 btu per us gallon (BTU/gal). Conversely, 1 megajoule per liter (MJ/L) is equal to 3,587.87797 btus per us gallon (BTU/gal).

References

NIST · BIPM · ISO
  1. [1]
    NIST OWM (SI Units — Length)·Fuel Efficiency - Volume Metrology Standard — BTUs per US Gallon (BTU/gal) to Megajoules per Liter (MJ/L)
    NIST OWM Standard
  2. [2]
    BIPM (SI Base Unit: Metre (m))·Unit Specifications: BTU per US Gallon (BTU/gal) & Megajoule per Liter (MJ/L)
    BIPM Specification
  3. [3]
    NIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (BTU/gal to MJ/L)
    NIST HB 133 Reference
Measurement Navigator78 Categories9 Scientific Domains

Browse All 78 Measurement Categories

Heat & Thermodynamics ConvertersThermal engineering and calorimetry calculators for mass/volume fuel efficiency, temperature intervals, thermal expansion, thermal resistance, conductivity, specific heat capacity, heat density, and heat transfer.