Quantity

SI Unit

Other Unit

Remarks

mass

density (mass density) moment of inertia force

moment (torque) stress

pressure work energy

electric potential power temperature quantity of heat heat flow rate frequency

rotational frequency velocity

plane angle

kg

kg m

kg ­ m

N

N ­ m Pa or N m

Pa

J

J

W

K or

〬C J

W

Hz

s

m s

rad

t

-

-

kgf kgf ­ m kgf m m

kgf cm or bar

kgf ­ m

kW ­ h

PS

C

cal or kcal

kcal h

-

min rpm knot

〬, ', "

1 tkg

-

-

1 kgf = 9.81 N

1 kgf ­ m = 9.81 N ­ m

1 kgf mm = 9.81 N mm = 9.81 MPa

1 kgf cm = 0.981 bar = 98.1 kPa

1 kgf ­ m = 9.81 J

1 kW­h = 3.6 × J

1 PS = 735.5 W

〬C = K

1 kcal = 4.19 kJ

1 kcal h = 1.16 W

-

rpm = 60 s

1 knot = 1852 m h

1〬 = rad