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Quest will use the following conversion values unless the problem you are working on tells you differently. Quest will not automatically convert units so make sure you submit your answer with the correct unit type.

EnergyForcePressurePower and Angles
1 Btu = 1.054 × 10+3 J
1 Btu = 252 cal
1 Cal = 1 × 10+3 cal
1 cal = 1 × 10−3 Cal
1 cal = 3.968 × 10−3 Btu
1 cal = 4.186 J
1 eV = 1.0735 × 10−9 u
1 eV = 1.602 × 10−19 J
1 erg = 1 × 10−7 J
1 ftlb = 1.355 J
1 J = 0.2389 cal
1 J = 0.738 ftlb
1 J = 1 × 10+7 erg
1 J = 2.778 × 10−7 kWh
1 J = 6.242 × 10+18 eV
1 J = 9.488 × 10−4 Btu
1 kW = 1.34 hp
1 kWh = 3.6 × 10+6 J
1 u = 931.5 × 10+6 eV
1 dyne = 1 × 10−5 N
1 dyne = 4.448 × 10+5 lb
1 lb = 2.248 × 10−6 dyne
1 lb = 4.448 N
1 N = 0.2248 lb
1 N = 1 × 10+5 dyne
1 Hg = 1.316 atm
1 Pa = 9.872 × 10−6 atm
1 atm = 0.760 Hg
1 atm = 1.013 × 10+5 Pa
1 W = 1.34 × 10−3 hp
1 hp = 0.746 kW
1 hp = 746 W
1 deg = 0.01745329252 rad
1 deg = 2.777777778 × 10−3 rev
1 rad = 0.1591549431 rev
1 rad = 57.29577951 deg
1 rev = 360 deg
1 rev = 6.283185308 rad
LengthTimeVolumeMass
1 Å = 1 × 10−10 m
1 cm = 0.3937 in
1 cm3 = 1 × 10−3 liter
1 ft = 0.3048 m
1 ft = 0.333333 yd
1 ft = 1.894 × 10−4 mi
1 ft = 12 in
1 ft3 = 28.33 liter
1 ft3 = 7.481 gal
1 in = 2.54 × 10−2 m
1 in = 2.54 cm
1 in = 8.333 × 10−2 ft
1 km = 0.6215 mi
1 m = 1 × 1010 Å
1 m = 1.0936 yd
1 m = 3.281 ft
1 m = 39.37 in
1 m = 0.0006215 mi
1 mi = 1.609 km
1 mi = 1609.0 m
1 mi = 5280 ft
1 yd = 0.9144 m
1 yd = 3 ft
1 day = 1.44 × 10+3 min
1 day = 2.74 × 10−3 year
1 day = 24 h
1 day = 8.64 × 10+4 s
1 h = 1.141 × 10−4 year
1 h = 3600 s
1 h = 4.167 × 10−2 day
1 h = 60 min
1 min = 1.666667 × 10−2 h
1 min = 1.901 × 10−6 year
1 min = 6.944 × 10−4 day
1 min = 60 s
1 s = 1.157 × 10−5 day
1 s = 1.666667 × 10−2 min
1 s = 2.777778 × 10−4 h
1 s = 3.16 × 10−8 year
1 year = 3.16 × 10+7 s
1 year = 365.25636 day
1 year = 5.259 × 10+5 min
1 year = 8.766 × 10+3 h
1 gal = 0.1337 ft3
1 gal = 231 in3
1 gal = 3.786 liter
1 in3 = 4.33 × 10−3 gal
1 liter = 0.0353 ft3
1 liter = 0.264 gal
1 liter = 1 × 10−3 m3
1 liter = 1 × 10+3 cm3
1 liter = 1.0576 qt
1 m3 = 1 × 10+3 liter
1 qt = 0.9455 liter
1 kg = 1 × 10−3 t
1 kg = 6.024 × 10+26 u
1 kg = 6.854 × 10−2 slug
1 slug = 14.59 kg
1 t = 1 × 10+3 kg
1 u = 1.66 × 10−27 kg