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Quads to Calories Converter

Convert quads (10¹⁵ Btu) (quad) to calories (thermochemical) (cal), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
The unit you want the answer in. Swap exchanges the two units.
Result
2.52164400722 × 10¹⁷ cal
joules (watt-seconds)
1.05505585262 × 10¹⁸ J
kilojoules
1.05505585262 × 10¹⁵ kJ
megajoules
1,055,055,852,620 MJ
gigajoules
1,055,055,852.62 GJ
kilocalories (food Calories)
252,164,400,722,000 kcal
megacalories
252,164,400,722 Mcal
watt-hours
293,071,070,172,000 Wh
kilowatt-hours
293,071,070,172 kWh
megawatt-hours
293,071,070.172 MWh
British thermal units (IT)
1 × 10¹⁵ Btu
million Btu
1,000,000,000 MMBtu
therms (100,000 Btu)
10,000,000,000 thm
electronvolts
6.58514067819 × 10³⁶ eV
kiloelectronvolts
6.58514067819 × 10³³ keV
megaelectronvolts
6.58514067819 × 10³⁰ MeV

1 quad = 2.52164400722 × 10¹⁷ cal

Show the working
  1. 1 quad = 2.52164400722e17 cal
  2. 1 × 2.52164400722e17 = 2.52164400722e17 cal

How to convert quads to calories

1 quad = 2.52164400722 × 10¹⁷ cal, so multiply by 2.52164400722 to go from quads (10¹⁵ Btu) to calories (thermochemical). Going the other way, 1 cal = 3.96566683139 × 10⁻¹⁸ quad.

cal = quad × 2.52164400722
quad = cal × 3.96566683139

Worked example:

1 quad = 2.52164400722e17 cal
5 × 2.52164400722e17 = 1.26082200361e18 cal

Quads to calories table

QuadsCalories
1 quad2.52164400722 × 10¹⁷ cal
2 quad5.04328801444 × 10¹⁷ cal
3 quad7.56493202165 × 10¹⁷ cal
4 quad1.00865760289 × 10¹⁸ cal
5 quad1.26082200361 × 10¹⁸ cal
6 quad1.51298640433 × 10¹⁸ cal
7 quad1.76515080505 × 10¹⁸ cal
8 quad2.01731520577 × 10¹⁸ cal
9 quad2.2694796065 × 10¹⁸ cal
10 quad2.52164400722 × 10¹⁸ cal
15 quad3.78246601083 × 10¹⁸ cal
20 quad5.04328801444 × 10¹⁸ cal
25 quad6.30411001804 × 10¹⁸ cal
30 quad7.56493202165 × 10¹⁸ cal
40 quad1.00865760289 × 10¹⁹ cal
50 quad1.26082200361 × 10¹⁹ cal
75 quad1.89123300541 × 10¹⁹ cal
100 quad2.52164400722 × 10¹⁹ cal
250 quad6.30411001804 × 10¹⁹ cal
500 quad1.26082200361 × 10²⁰ cal
1000 quad2.52164400722 × 10²⁰ cal

About the units

Quads (quad)
Quads (10¹⁵ Btu), a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
Calories (cal)
Calories (thermochemical), a specialised unit. The thermochemical calorie, 4.184 J, used on US food labels as 1 Calorie = 1 kilocalorie. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed