Units Currencies
Constants
Units Home
Unit Conversion
List Units
List Categories
Currencies
Convert Units
SI System
Base Units
Derived Units
Prefixes
Numbers
Constants
Base-N
Fractions
Time / Decimal
Resources
Bibliography
Offshore

International news and technology for marine/offshore operations around the world.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Hydraulics & Pneumatics

For design and manufacturing engineers involved in buying or specifying fluid power components and systems.

more free magazines
 
year (tropical)
Symbol:  atrop. 
Category:  Time 
SI Equivalent:  3.15569×107 s
Dimension
 
Notes
The time interval corresponds to one revolution of the earth about the sun measured between successive mean vernal equinoxes.
Convert     atrop.  
1 atrop. =
Permeability coefficient
  Symbol Unit Name
3.15569×107  kg-m/N-s  kilogram meter per newton per second 
2.17152×1019  perm-inch (0 °C)  perm-inch (0°C) 
2.16249×1019  perm-inch (23 °C)  perm-inch (23°C) 
2.17152×1022  perm-mil (0 °C)  perm-mil (0°C) 
2.16249×1022  perm-mil (23 °C)  perm-mil (23°C) 
Time
  Symbol Unit Name
1.30461×1024  a.u.  a.u. of time 
3.65242×107    blink 
365.242  d  day 
366.243  d (sider.)  day (sidereal) 
26.0887    fortnight 
8765.81  h  hour 
3.35726×1030    Jordan's elementary time 
3.15569×1013  ms  microsecond 
3.15569×1010  ms  millisecond 
5.25949×105  min, mn  minute 
12.1747    month (30 days) 
13.3682    month (sidereal) 
12.008    month (solar mean) 
12.3683    month (synodic), lunar month 
3.15569×1016  ns  nanosecond 
3.15569×107  s  second 
3.15569×1015    shake 
52.1775  w  week 
9.46708×1016    wink 
0.99997  aastr.  year (astronomical), Bessel year 
1.00066  a, y  year (calendar) 
0.999961    year (sidereal) 
0.999979  a, y  year (solar mean) 
Glossary