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Kiloelectronvolts to Quads Converter

Convert kiloelectronvolts (keV) to quads (10¹⁵ Btu) (quad), 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
1.51857044347 × 10⁻³⁴ quad
joules (watt-seconds)
1.602176634 × 10⁻¹⁶ J
kilojoules
1.602176634 × 10⁻¹⁹ kJ
megajoules
1.602176634 × 10⁻²² MJ
gigajoules
1.602176634 × 10⁻²⁵ GJ
calories (thermochemical)
3.82929405832 × 10⁻¹⁷ cal
kilocalories (food Calories)
3.82929405832 × 10⁻²⁰ kcal
megacalories
3.82929405832 × 10⁻²³ Mcal
watt-hours
4.45049065 × 10⁻²⁰ Wh
kilowatt-hours
4.45049065 × 10⁻²³ kWh
megawatt-hours
4.45049065 × 10⁻²⁶ MWh
British thermal units (IT)
1.51857044347 × 10⁻¹⁹ Btu
million Btu
1.51857044347 × 10⁻²⁵ MMBtu
therms (100,000 Btu)
1.51857044347 × 10⁻²⁴ thm
electronvolts
1,000 eV
megaelectronvolts
0.001 MeV

1 keV = 1.51857044347 × 10⁻³⁴ quad

Show the working
  1. 1 keV = 1.51857044347e-34 quad
  2. 1 × 1.51857044347e-34 = 1.51857044347e-34 quad

How to convert kiloelectronvolts to quads

1 keV = 1.51857044347 × 10⁻³⁴ quad, so multiply by 1.51857044347 to go from kiloelectronvolts to quads (10¹⁵ Btu). Going the other way, 1 quad = 6.58514067819 × 10³³ keV.

quad = keV × 1.51857044347
keV = quad × 6.58514067819

Worked example:

1 keV = 1.51857044347e-34 quad
5 × 1.51857044347e-34 = 7.59285221736e-34 quad

Kiloelectronvolts to quads table

KiloelectronvoltsQuads
1 keV1.51857044347 × 10⁻³⁴ quad
2 keV3.03714088694 × 10⁻³⁴ quad
3 keV4.55571133041 × 10⁻³⁴ quad
4 keV6.07428177388 × 10⁻³⁴ quad
5 keV7.59285221736 × 10⁻³⁴ quad
6 keV9.11142266083 × 10⁻³⁴ quad
7 keV1.06299931043 × 10⁻³³ quad
8 keV1.21485635478 × 10⁻³³ quad
9 keV1.36671339912 × 10⁻³³ quad
10 keV1.51857044347 × 10⁻³³ quad
15 keV2.27785566521 × 10⁻³³ quad
20 keV3.03714088694 × 10⁻³³ quad
25 keV3.79642610868 × 10⁻³³ quad
30 keV4.55571133041 × 10⁻³³ quad
40 keV6.07428177388 × 10⁻³³ quad
50 keV7.59285221736 × 10⁻³³ quad
75 keV1.1389278326 × 10⁻³² quad
100 keV1.51857044347 × 10⁻³² quad
250 keV3.79642610868 × 10⁻³² quad
500 keV7.59285221736 × 10⁻³² quad
1000 keV1.51857044347 × 10⁻³¹ quad

About the units

Kiloelectronvolts (keV)
Kiloelectronvolts, a specialised unit. Definition: NIST CODATA: elementary charge (exact since the 2019 SI redefinition).
Quads (quad)
Quads (10¹⁵ Btu), a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed