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
Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

more free publications

Materials

Design

Processes

Units

Formulas

Math
 
zettameter
Symbol:  Zm 
Category:  Length 
SI Equivalent:  1×1021 m
Dimension:  L 
System:  SI 
Convert     Zm  
1 Zm =
Length
  Symbol Unit Name
1.88973×1031  a.u., a0, b  a.u. of length 
1×1031  Å  angstrom 
3.43775×1024  arcmin  arcmin 
6.68459×109  AU, UA  astronomical unit 
10×1038  am  attometer 
1.1811×1023    barleycorn (UK) 
1.88973×1031  a0, b  bohr (first Bohr radius) 
2.73403×1019    bolt (US cloth) 
4.72441×1023  line (UK)  button (UK) 
1.5748×1024  line (US)  button (US) 
5.39957×1018    cable length (int.) 
5.39612×1018    cable length (UK) 
4.55672×1018    cable length (US) 
3.93701×1024  caliber, cin  caliber (centiinch) 
1×1023  cm  centimeter 
3.28084×1019  ch  chain (engineer's) 
4.97097×1019  ch  chain (Gunter's) 
3.28084×1019  ch  chain (Ramsden's) 
4.97097×1019  ch  chain (surveyor's) 
2.18723×1021    cubit (UK) 
1×1020  dam  decameter 
1×1022  dm  decimeter 
3.54869×1035  re  electron classical radius 
8.74891×1020    ell 
2.37107×1023    ems (pica) 
1000  Em  exameter 
5.46807×1020  fath  fathom 
1×1036  fm  femtometer 
1×1036  F, f  fermi 
1.88973×1031  a0, b, a.u.  first Bohr radius 
3.28084×1021  ft  foot 
3×1024  fr  French 
4.97097×1018  fur  furlong (UK) 
4.97097×1018  fur  furlong (US) 
1×1012  Gm  gigameter 
9.84252×1021  hd  hand (UK) 
1×1019  hm  hectometer 
1.05702×10-4    hubble 
3.93701×1022  in  inch 
1×1018  km  kilometer 
32.4078  kpc  kiloparsec 
2.07168×1017    league (Canadian) 
1.79986×1017  leag. (int. naut.)  league (int. naut.) 
2.07124×1017  leag. (stat.)  league (statute, land) 
1.79871×1017  leag. (UK, naut.)  league (UK, naut.) 
1.79871×1017  leag. (US, naut.)  league (US, naut.) 
3.8607×107    light-day 
9.26567×108    light-hour 
5.5594×1010    light-minute 
3.33564×1012    light-second 
1.05702×105  ly  light-year 
4.72441×1023  line (UK)  line (UK) 
1.5748×1024  line (US)  line (US) 
3.28084×1021    link (engineer's) 
4.97097×1021    link (Gunter's) 
3.28084×1021    link (Ramsden's) 
4.97097×1021    link (surveyor's) 
1×1015  Mm  megameter 
1×1021  m  meter 
3.93701×1028  µin  microinch 
1×1027  µm  micron 
3.93701×1025  mil, thou  mil (thou) 
1.34742×1017  mile (geogr.)  mile (geographical) 
6.2137×1017  mi (int.)  mile (international) 
5.39957×1017  mi (naut., int.)  mile (nautical, international) 
5.38991×1017  mi (naut., teleg.)  mile (nautical, telegraph) 
5.39612×1017  mi (naut., UK, US)  mile (nautical, UK, US) 
6.21371×1017  mi (stat.)  mile (statute, land) 
6.2137×1017  mi (survey, US)  mile (survey, US) 
10×1023  mm  millimeter 
1×1030  mµ, nm  millimicron 
4.37445×1021    nail (UK) 
1×1030  nm  nanometer 
5.39957×1017  mi (int. naut.)  nautical mile (international) 
5.39612×1017  mi (UK, US, naut.)  nautical mile (UK, US) 
1.31234×1021    pace (UK) 
1.31234×1022    palm (UK) 
3.24078×104  pc  parsec 
1.98839×1020  rd  perch (rod, pole) 
1×106  Pm  petameter 
2.37106×1023    pica 
1×1033  pm  picometer 
2.84528×1024    point (US printer's) 
1.98839×1020  rd  pole (rod, perch) 
1×1014    quadrant 
1.98839×1020  rd  rod (perch, pole) 
1.64042×1020    rope (UK) 
4.37445×1021    span 
1×109  Tm  terameter 
3.93701×1025  thou, mil  thou (mil) 
9.99792×1033  UX, X  X-unit 
1.09361×1021  yd  yard 
1×1045  ym  yoctometer 
1×10-3  Ym  yottameter 
1×1042  zm  zeptometer 
Glossary
FREE Publications
Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

more publications