Convert length and distance units — meters, feet, inches, kilometers, miles, light years and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 pc | 3.086e+15 cm | |
| 0.01 pc | 3.086e+16 cm | |
| 0.1 pc | 3.086e+17 cm | |
| 1 pc | 3.086e+18 cm | |
| 5 pc | 1.543e+19 cm | |
| 10 pc | 3.086e+19 cm | |
| 50 pc | 1.543e+20 cm | |
| 100 pc | 3.086e+20 cm | |
| 1000 pc | 3.086e+21 cm |
Multiply the number of Parsecs by 3.086×1018 to get Centimeters. Formula: cm = pc × 3.086×1018. Example: 10 pc × 3.086×1018 = 3.086×1019 cm. To reverse, divide Centimeters by 3.086×1018 to get Parsecs.
| Parsec (pc) | Centimeter (cm) |
|---|---|
| 0.001 pc | 3.086×1015 cm |
| 0.01 pc | 3.086×1016 cm |
| 0.1 pc | 3.086×1017 cm |
| 0.5 pc | 1.543×1018 cm |
| 1 pc | 3.086×1018 cm |
| 2 pc | 6.172×1018 cm |
| 5 pc | 1.543×1019 cm |
| 10 pc | 3.086×1019 cm |
| 20 pc | 6.172×1019 cm |
| 50 pc | 1.543×1020 cm |
| 100 pc | 3.086×1020 cm |
| 250 pc | 7.715×1020 cm |
| 500 pc | 1.543×1021 cm |
| 1000 pc | 3.086×1021 cm |
| 10000 pc | 3.086×1022 cm |
To convert Parsec to Centimeter, multiply by 3.086×1018. Example: 10 pc = 3.086×1019 cm
To convert Centimeter back to Parsec, divide by 3.086×1018 (multiply by 3.2404×10-19). Use the swap button above.
Start with 100 Parsecs = 3.086×1020 cm as your reference point. Scale up or down from there.
1 pc = 3.086×10¹⁸ cm. The CGS system uses centimetres as its base length unit — astrophysics papers using CGS routinely express parsec-scale stellar distances in centimetres for equations involving luminosity, flux, and radiation pressure.
The distance modulus formula m - M = 5log(d/10pc) uses parsecs. Converting to CGS centimetres for flux calculations requires parsec-to-cm conversion — embedded in every stellar luminosity and absolute magnitude calculation.
X-ray sources at parsec distances are characterised using CGS-unit flux equations involving centimetre-based cross-sections and distances. X-ray astronomers convert parsec distances to centimetres for every source luminosity calculation.
Radio telescopes measure flux in Janskys (CGS units) while source distances use parsecs. Converting parsec distances to centimetres for CGS-consistent radio source luminosity calculations is routine in radio astrophysics.
1 pc = 3.086×10¹⁸ cm — 3 quintillion centimetres. Science educators use this to define the parsec in CGS terms: "A parsec is 3 quintillion centimetres — the unit astronomers use because it comes directly from parallax measurements."
Computational astrophysics simulations in CGS must convert parsec-scale initial conditions to centimetres for integration and back to parsecs for comparison with observational catalogues.
The Parsec is a unit of Length measurement (symbol: pc). 1 pc = 3.086×1018 cm. Used in scientific and practical Length measurement applications.
The Centimeter is a unit of Length measurement (symbol: cm). It is part of an internationally recognised measurement system used alongside the Parsec.
The parsec was introduced in 1913 by British astronomer Herbert Hall Turner, who needed a practical unit for expressing stellar distances measured by parallax. The name is a portmanteau of 'parallax' and 'arcsecond' — a parsec is the distance at which one astronomical unit (the Earth-Sun distance) subtends an angle of exactly one arcsecond. This geometric definition makes parsecs directly useful: a star with a measured parallax of 1 arcsecond is exactly 1 parsec away, requiring no intermediate conversion. 1 parsec equals approximately 3.086×10¹³ kilometres or 3.262 light-years. Professional astronomers overwhelmingly prefer parsecs over light-years because parallax astrometry — the primary distance measurement tool — yields distances in parsecs directly.
The centimetre was introduced in 1795 as part of the French metric system — one-hundredth of a metre. The CGS system built around it became dominant in 19th-century science and remains standard in astrophysics today. The centimetre is now the primary unit for body measurements, clothing sizes, and everyday objects in most of the world.
Common use: Parsec to Centimeter conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.