General Data > Time, velocity, acceleration and volume flow rate units and equivalents
Time
| Unit Name |
Symbol |
SI Equivalent |
| a.u. of time |
a.u. |
2.41888x10 -17 s |
| blink |
|
0.864 s |
| day |
d |
8.64x104 s |
| day (sidereal) |
d (sider.) |
8.6164x104 s |
| fortnight |
|
1.2096x106 s |
| hour |
h |
3600 s |
| Jordan's elementary time |
|
9.3996x10-24 s |
| microsecond |
m s |
1x10-6 s |
| millisecond |
ms |
1x10-3 s |
| minut |
min, mn |
60s |
| month (30 days) |
|
2.592x106 s |
| month (sidereal) |
|
2.36059x106 s |
| month (solar mean) |
|
2.628x106 s |
| month (synodic), lunar month |
|
2.55144x106 s |
| nanosecond |
ns |
1x10-9 s |
| second |
s |
1s |
| shake |
|
1x10-8 s |
| week |
w |
6.048x105 s |
| wink |
|
3.33333x10-10 s |
| year (astronomical), Bessel year |
a astr. |
3.15579x107 s |
| year (calendar) |
a, y |
3.1536x107 s |
| year (sidereal |
|
3.15581x107 s |
| year (solar mean) |
a, y |
3.15576x107 s |
| year (tropical) |
a trop. |
3.15569x107 s |
Angular Velocity
| Unit Name |
Symbol |
SI Equivalent |
| degree per minute |
°/min |
2.90888x10-4 rad/s |
| degree per second |
°/s |
1.74533x10-2 rad/s |
| radian per minute |
rad/min |
1.66667x10-2 rad/s |
| radian per second |
rad/s |
1rad/s |
| revolution per minute |
rpm, rev/min |
0.10472rad/s |
| revolution per second |
rps, rev/s |
6.28319rad/s |
Velocity
| Unit Name |
Symbol |
SI Equivalent |
| benz |
Bz |
1 m/s |
| centimeter per minute |
cm/min |
1.66667x10-4 m/s |
| centimeter per second |
c m/s |
1x10-2 m/s |
| foot per hour |
ft/h, fph |
8.46667x10-5 m/s |
| foot per minute |
ft/min, fpm |
5.08x10-3 m/s |
| foot per second |
ft/s, fps |
0.3048 m/s |
| furlong per fortnight |
furlong/fortnight |
1.66309x10-4 m/s |
| inch per second |
in/s, ips |
2.54x10-2 m/s |
| kilometer per hour |
km/h |
0.277778 m/s |
| knot (noeud) |
kn, knot |
0.514444 m/s |
| kyne |
c m/s |
1x10-2 m/s |
| meter per minute |
m/min |
1.66667x10-2 m/s |
| meter per second |
m/s |
1 m/s |
| mil per year |
mpy |
8.04327x10-13 m/s |
| mile (naut.) per hour (knot, noeud) |
knot |
0.514444 m/s |
| mile (stat.) per hour |
mph, mi/h |
0.44704 m/s |
| mile (stat.) per minute |
mi/min |
26.8224 m/s |
| millimeter per minute |
mm/min |
1.66667x10-5 m/s |
| millimeter per second |
m m/s |
1x10-3 m/s |
| speed of light |
|
2.99792x108 m/s |
Velocity change with temperature
Unit Name
| |
Symbol |
SI Equivalent |
| foot per second per degree Fahrenheit |
ft/s-°F |
0.54864 m/s-K |
| meter per second per degree Celsius |
m/s-°C |
1 m/s-K |
| meter per second per Kelvin< |
m/s-K |
1 m/s-K |
Acceleration
| Unit Name |
Symbol |
SI Equivalent |
| celo |
ft/s2 |
0.3048 m/s2 |
| centimeter per square second |
c m/s2 |
1x10-2 m/s2 |
| foot per square second |
ft/s2 |
0.3048 m/s2 |
| g (gravitational acceleration) |
g |
9.80665 m/s2 |
| galileo |
|
1x10-2 m/s2 |
| inch per square second |
in/s2 |
2.54x10-2 m/s2 |
| kilometer per hour per second |
km/h-s |
0.277778 m/s2 |
| leo |
|
10 m/s2 |
| meter per square second< |
m/s2 |
1 m/s2 |
| mile (stat.) per hour per second |
mph/s, mi/h-s |
0.44704 m/s2 |
| normal acceleration |
g n |
9.80665 m/s2 |
|
Angular Acceleration
| Unit Name |
Symbol |
SI Equivalent |
| degree per square second |
°/s2 |
1.74533x10-2 rad/s2 |
| radian per square second |
rad/s2 |
1 rad/s2 |
| revolution per minute per second |
rp m/s, rev/min-s |
0.10472 rad/s2 |
| revolution per square minute |
rpm/min, rev/min2 |
1.74533x10-3 rad/s2 |
| revolution per square second |
rps/s, rev/s2 |
6.28319 rad/s2 |
Volume flow rate
| Unit Name |
Symbol |
SI Equivalent |
| acre foot per month |
acre-ft/month |
4.69361x10-4 m3/s |
| barrel (US, liq.) per day |
bbl (US, liq.)/day |
1.3801x10-6 m3/s |
| barrel (US, petrol) per day |
bbl (US, petrol)/day |
1.84013x10-6 m3/s |
| cubic centimeter per second |
c m3/s |
1x10-6 m3/s |
| cubic foot per minute |
cfm, ft 3/min |
4.71947x10-4 m3/s |
| cubic foot per second |
cfs, ft 3/s |
2.83168x10-2 m3/s |
| cubic inch per minute |
in 3/min |
2.73118x10-7 m3/s |
| cubic inch per second |
in 3/s |
1.63871x10-5 m3/s |
| cubic meter per hour |
m 3/h |
2.77778x10-4 m3/s |
| cubic meter per minute |
m 3/min |
1.66667x10-2 m3/s |
| cubic meter per second |
m3/s |
1 m3/s |
| cubic yard per minute |
yd 3/min |
1.27426x10-2 m3/s |
| cumec (musec) |
cumec |
1 m3/s |
| gallon (UK) per day |
gal (UK)/day |
5.26168x10-8 m3/s |
| gallon (UK) per hour |
gph (UK) |
1.2628x10-6 m3/s |
| gallon (UK) per minute |
gpm (UK) |
7.57682x10-5 m3/s |
| gallon (UK) per second |
gps (UK) |
4.54609x10-3 m3/s |
| gallon (US, liq.) per day |
gal (US, liq.)/day |
4.38126x10-8 m3/s |
| gallon (US, liq.) per hour |
gph (US) |
1.0515x10-6 m3/s |
| gallon (US, liq.) per minute |
gpm (US) |
6.30902x10-5 m3/s |
| gallon (US, liq.) per second |
gps (US) |
3.78541x10-3 m3/s |
| liter per hour |
l/h |
2.77778x10-7 m3/s |
| liter per minute |
l/min |
1.66667x10-5 m3/s |
| liter per second |
l/s |
1x10-3 m3/s |
| lusec |
|
1x10-3 m3/s |
| miner's inch |
|
7.07921x10-4 m3/s |