General Data > Mass, density, force and pressure units and equivalents
Mass
Unit Name |
Symbol |
SI Equivalent |
a.u. of mass (electron rest mass) |
|
m 0 , m e |
9.10938x10-31 kg |
|
|
2.9167x10-2 kg |
|
u, uma, Da(1H), AMU |
1.67353x10-27 kg |
atomic unit of mass (12C) |
|
u, uma, Da(12C), AMU |
1.66054x10-27 kg |
atomic unit of mass (16O) |
|
u, uma, Da(16O), AMU |
1.66001x10-27 kg |
|
ag |
1x10-21 kg |
|
|
1.66036x10-24 kg |
|
|
42.6377 kg |
|
ct. |
2x10-4 kg |
|
ct (troy) |
2.05197x10-4 kg |
|
cH, cwt |
45.3592 kg |
|
cg |
1x10-5 kg |
dalton (atomic unit of mass) |
|
u, uma, Da |
1.66054x10-27 kg |
|
dag |
1x10-2 kg |
|
dg |
1x10-4 kg |
|
dr (troy) |
3.88793x10-3 kg |
dram or drachm (apothecary) |
|
dr (ap.), dr (apoth.) |
3.88793x10-3 kg |
dram or drachm (avoirdupois) |
|
dr (av.), dr (avdp) |
1.77185x10-3 kg |
electron rest mass (a.u. of mass) |
|
m 0, m e |
9.10939x10-31 kg |
|
Eg |
1x1015 kg |
|
fg |
1x10-18 kg |
|
g |
1x10-9 kg |
|
slug |
14.5939 kg |
|
Gg |
1x106 kg |
|
gr (apoth.), gr (ap.) |
6.47989x10-5 kg |
|
gr (avdp.), gr (av.) |
6.47989x10-5 kg |
|
gr (troy) |
6.47989x10-5 kg |
|
g |
1x10-3 kg |
|
hg |
0.1 kg |
hundredweight (gross or long) |
|
cH, cwt, lg cwt |
50.8023 kg |
Density
Unit Name |
Symbol |
SI Equivalent |
gram per cubic centimeter |
|
g/cm3 |
1000 kg/m3 |
|
g/m3 |
1x10-3 kg/m3 |
|
g/l |
1 kg/m3 |
kilogram per cubic decimeter |
|
kg/dm3 |
1000 kg/m3 |
|
kg/m3 |
1 kg/m3 |
|
kg/l |
1000 kg/m3 |
ounce (av.) per cubic foot |
|
oz (av.)/ft3 |
1.00115 kg/m3 |
ounce (av.) per cubic inch |
|
oz (av.)/in3 |
1729.99 kg/m3 |
pound mass per cubic foot |
|
lbm/ft3 |
16.0185 kg/m3 |
pound mass per cubic inch |
|
lbm/in3 |
2.76799x104 kg/m3 |
pound mass per cubic yard |
|
lbm/yd3 |
0.593276 kg/m3 |
pound mass per gallon (UK) |
|
lbm/gal (UK) |
99.7763 kg/m3 |
pound mass per gallon (US, liq.) |
|
lbm/gal (US, liq.) |
119.826 kg/m3 |
|
slug/ft3 |
515.379 kg/m3 |
|
slug/in3 |
8.90575x10m5 kg/m3 |
|
slug/yd3 |
19.0881 kg/m3 |
|
|
1000 kg/m3 |
Force
Unit Name |
Symbol |
SI Equivalent |
|
a.u. |
8.23873x10-8 N |
|
crinal |
0.1 N |
|
dyn |
1x10-5 N |
|
gf |
9.80665x10-3 N |
|
J/cm |
100 N |
|
kgf, kgp |
9.80665 N |
kilogram meter per square second |
|
kg-m/s2 |
1 N |
kilopound force (kip force) |
|
kipf |
4448.22 N |
|
N |
1 N |
|
ozf (av.) |
0.278014 N |
|
lbf (av.), lbf |
4.44822 N |
pound force foot per inch |
|
lbf-ft/in |
53.3786 N |
|
pdl |
0.138255 N |
slug foot per square second |
|
slug-ft/s2 |
4.44822 N |
|
|
143.117 N |
square foot inch of mercury (0°C) |
|
ft2-inHg (0 °C) |
314.605 N |
square foot inch of mercury (15.56°C) |
|
ft2-inHg (15.56 °C) |
313.751 N |
|
|
9964.02 N |
|
|
9806.65 N |
|
|
8896.44 N |
Pressure
Unit Name |
Symbol |
SI Equivalent |
|
at |
9.80665x104 Pa |
|
atm |
1.01325x103 Pa |
|
bar |
1x103 Pa |
|
barad |
0.1 Pa |
|
|
0.1 Pa |
|
|
1333.22 Pa |
centimeter of mercury (0°C) |
|
cmHg (0 °C) |
1333.22 Pa |
centimeter of water (4°C) |
|
cmH2O |
98.0638 Pa |
dyne per square centimeter |
|
dyn/cm2 |
0.1 Pa |
|
ft H2O |
2988.98 Pa |
|
GPa |
1x103 Pa |
|
hPa |
100 Pa |
|
inHg (0 °C) |
3386.38 Pa |
inch of mercury (15.56°C) |
|
inHg (15.56 °C) |
3377.18 Pa |
|
inH 2O (15.56 °C) |
248.845 Pa |
|
inH 2O (4 °C) |
249.082 Pa |
kilogram force per square centimeter |
|
kgf/cm2 |
9.80665x104 Pa |
kilogram force per square decimeter |
|
kgf/dm2 |
980.665 Pa |
kilogram force per square meter |
|
kgf/m2 |
9.80665 Pa |
kilogram force per square millimeter |
|
kgf/mm2 |
9.80665x106 Pa |
|
kPa |
1000 Pa |
kilopound force per square inch |
|
kip/in2, ksi, KSI |
6.89476x106 Pa |
|
MPa |
1x106 Pa |
|
mH2O, mCE (15.56 °C) |
9797.06 Pa |
|
mH2O, mCE (4 °C) |
9806.38 Pa |
|
µbar |
0.1 Pa |
micron of mercury (millitorr) |
|
µHg (0 °C) |
0.133322 Pa |
|
mbar |
100 Pa |
millimeter of mercury (0°C) |
|
mmHg, torr, Torr (0 °C) |
133.322 Pa |
millimeter of water (15.56°C) |
|
mmH2O, mmCE (15.56 °C) |
9.79706 Pa |