Calories per Gram to BTUs per Pound Converter
Enter the fuel efficiency in calories per gram below to convert it to btus per pound.
Convert Calories per Gram to BTUs per Pound
Enter a value in calories per gram (cal/g) to convert to btus per pound (BTU/lb).
Calorie per Gram to BTU per Pound Conversion Table
Table showing various calorie per gram measurements converted to btus per pound. Click any preset value or arrow to load it into the converter.
| Calories per Gram (cal/g) | BTUs per Pound (BTU/lb) |
|---|---|
| 1 cal/g | 1.8 BTU/lb |
| 2 cal/g | 3.6 BTU/lb |
| 2.5 cal/g | 4.5 BTU/lb |
| 5 cal/g | 9 BTU/lb |
| 10 cal/g | 18 BTU/lb |
| 15 cal/g | 27 BTU/lb |
| 20 cal/g | 36 BTU/lb |
| 25 cal/g | 45 BTU/lb |
| 30 cal/g | 54 BTU/lb |
| 50 cal/g | 90 BTU/lb |
How to Convert Calories per Gram to BTUs per Pound
To convert calories per gram to btus per pound, multiply the fuel efficiency by the following conversion ratio: 1.8 btus per pound/calorie per gram.
Since one calorie per gram is equal to 1.8 btus per pound, you can use this simple formula to convert:
The fuel efficiency in btus per pound is equal to the fuel efficiency in calories per gram multiplied by 1.8.
For example, here's how to convert 5 calories per gram to btus per pound using the formula above.
How Many BTUs per Pound Are in a Calorie per Gram?
There are 1.8 btus per pound in a calorie per gram, which is why we use this value in the formula above.
Our calorie per gram to btu per pound calculator automatically converts your fuel efficiency measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Calories per Gram and btus per pound are both units used to measure fuel efficiency. Keep reading to learn more about each unit.
What Is a Calorie per Gram?
A calorie per gram is a unit of fuel efficiency equal to 4,186.8 joules per kilogram (J/kg), the base unit for fuel efficiency. Equal to 4,186.8 J/kg (1 kcal/kg). [1]
The calorie per gram is classified as a metric and SI-compatible unit of fuel efficiency. Calories per Gram can be abbreviated as cal/g; for example, 1 calorie per gram can be written as 1 cal/g.
When working with calories per gram (cal/g) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, calories per gram (cal/g) are widely used across large-scale industrial, bulk, and macro-level fuel efficiency specifications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a BTU per Pound?
A btu per pound is a unit of fuel efficiency equal to 2,326 joules per kilogram (J/kg), the base unit for fuel efficiency. Imperial/US fuel specific heating value (1 BTU/lb = 2,326 J/kg). [2]
The btu per pound is classified as a US customary unit of fuel efficiency. BTUs per Pound can be abbreviated as BTU/lb; for example, 1 btu per pound can be written as 1 BTU/lb.
When working with btus per pound (BTU/lb) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, btus per pound (BTU/lb) are widely used across large-scale industrial, bulk, and macro-level fuel efficiency specifications within US customary workflows, engineering documentation, and technical data sheets.
When converting fuel efficiency between calories per gram (cal/g) and btus per pound (BTU/lb), keep full floating-point precision (1 cal/g = 1.8 BTU/lb; 1 BTU/lb = 0.5555556 cal/g) during intermediate calculations and round only the final btu per pound figure to match your instrument tolerance.
More Calorie per Gram & BTU per Pound Conversions
Need to calculate in the opposite direction? Use our btus per pound to calories per gram calculator to switch your starting unit immediately. You can also explore related tools such as converting btus per pound to calories per gram, converting calories per gram to joules per kilogram, or converting joules per kilogram to kilojoules per kilogram.
Convert from Calories per Gram
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Fuel Efficiency - Mass Metrology Standard — Calories per Gram (cal/g) to BTUs per Pound (BTU/lb)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Calorie (IT) per Gram (cal/g) & BTU per Pound (BTU/lb)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (cal/g to BTU/lb)