Definition:British Thermal Unit/Conversion Factors

British Thermal Unit: Conversion Factors

\(\ds \)

\(\)

\(\ds 1\)

British thermal unit

\(\ds \)

\(\approx\)

\(\ds 1055 \cdotp 06\)

joules

\(\ds \)

\(\approx\)

\(\ds 252\)

international calories

\(\ds \)

\(\approx\)

\(\ds 778 \cdotp 2\)

foot-pounds

\(\ds \)

\(\approx\)

\(\ds 0 \cdotp 293\)

watt-hour

Sources

• 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): $2$. Physical Constants and Conversion Factors: Table $2.5$ Factors for Converting Customary U.S. Units to SI Units
• 1968: Murray R. Spiegel: Mathematical Handbook of Formulas and Tables ... (previous) ... (next): $\S 41$: Conversion Factors: Energy
• 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $2.$ Unit Conversion Factors
• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): British thermal unit
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): British thermal unit
• 2009: Murray R. Spiegel, Seymour Lipschutz and John Liu: Mathematical Handbook of Formulas and Tables (3rd ed.) ... (previous) ... (next): $\S 6$: Conversion Factors: Energy