Centimeter is 0.01 meter units.
Centimeters to Parsecs Converter — cm to pc
Convert Centimeter (cm) to Parsec (pc) using the exact conversion factor (1 centimeter = 3.240779e-19 parsec). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Centimeters to Parsecs converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
A parsec is about 3.26156 light-years.
Result = input x 0.01 / 3.08567758e+16.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Centimeters to Parsecs
Centimeter and Parsec both measure length. Centimeter is typically associated with standard small-length unit worldwide except the US, while Parsec is typically associated with standard distance unit throughout professional astronomy worldwide.
Formula
parsecs = centimeters × 3.240779e-19
This factor comes from each unit's defined relationship to the category's base unit: 1 centimeter equals 0.01 base units, and 1 parsec equals 3.085678e+16 base units, so dividing one by the other gives the direct centimeter-to-parsec factor of 3.240779e-19.
Simple example
1 cm × 3.240779e-19 = 3.240779e-19 pc
1 centimeter = 3.240779e-19 parsecs.
Real-world example
10 cm × 3.240779e-19 = 3.240779e-18 pc
10 centimeters = 3.240779e-18 parsecs.
Conversion table
| Centimeter (cm) | Parsec (pc) |
|---|---|
| 1 cm | 3.240779e-19 pc |
| 5 cm | 1.62039e-18 pc |
| 10 cm | 3.240779e-18 pc |
| 21.0975 cm | 6.837234e-18 pc |
| 42.195 cm | 1.367447e-17 pc |
| 100 cm | 3.240779e-17 pc |
Reverse conversion: Parsec to Centimeter
3.240779e-19 pc × 3.085678e+18 = 0.9999999107 cm
3.240779e-19 parsecs = 0.9999999107 centimeters.
centimeters = parsecs × 3.085678e+18
For a page dedicated to this direction, see Parsec to Centimeter.
Centimeter vs. Parsec
| Aspect | Centimeter | Parsec |
|---|---|---|
| Family | SI derived (metric prefix) unit | non-SI unit used in astronomy |
| Typical use | Everyday small-object and body measurement (height, clothing sizes) outside the US | Measuring distances to nearby stars via parallax |
| Where it's used | Standard small-length unit worldwide except the US | Standard distance unit throughout professional astronomy worldwide |
Understanding the Centimeter
Centimeter (cm) measures distance. A centimeter is one-hundredth of a meter. It is classified as a SI derived (metric prefix) unit.
Where it's used: Standard small-length unit worldwide except the US
Uses of the Centimeter today
- Everyday small-object and body measurement (height, clothing sizes) outside the US
- Construction and manufacturing tolerances internationally
History of the Centimeter
The centimeter follows directly from the meter via the 'centi-' SI prefix (10⁻²), introduced with the metric system in the 1790s.
Historical origin. Centimeter was not the invention of a single named person; it developed through the process described above.
Understanding the Parsec
Parsec (pc) measures astronomical distance. The distance at which one astronomical unit subtends an angle of one arcsecond — approximately 3.26 light-years, or about 3.086 × 10¹⁶ meters. It is classified as a non-SI unit used in astronomy.
Where it's used: Standard distance unit throughout professional astronomy worldwide
Uses of the Parsec today
- Measuring distances to nearby stars via parallax
- Galactic and extragalactic distance scales in astrophysics research
History of the Parsec
The name is a portmanteau of 'parallax' and 'arcsecond,' reflecting how the unit is defined directly from the parallax method astronomers use to measure stellar distances: the tiny apparent shift in a nearby star's position as Earth orbits the Sun.
Historical origin. Parsec was not the invention of a single named person; it developed through the process described above.
Centimeter — sources
- BIPM SI Brochure — SI prefixes — Defines 'centi-' as the prefix for 10⁻².
Parsec — sources
- IAU (International Astronomical Union) — parsec definition — Standard astronomical definition of the parsec via stellar parallax.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many parsecs are in 1 centimeter?
1 centimeter equals 3.240779e-19 parsecs, using the exact defined conversion factor rather than an estimate.
How do I convert centimeter to parsec?
Multiply the centimeter value by 3.240779e-19. The converter above does this instantly to whatever precision you set.
How do I convert parsec back to centimeter?
Use the reverse factor: 1 parsec equals 3.085678e+18 centimeters. You can also use the swap control in the converter above to flip the direction instantly.
What is a centimeter?
Centimeter (cm) measures distance. A centimeter is one-hundredth of a meter. It is classified as a SI derived (metric prefix) unit.
What is a parsec?
Parsec (pc) measures astronomical distance. The distance at which one astronomical unit subtends an angle of one arcsecond — approximately 3.26 light-years, or about 3.086 × 10¹⁶ meters. It is classified as a non-SI unit used in astronomy.
Is the centimeter to parsec conversion exact?
Yes. Both centimeter and parsec are defined by fixed standards rather than physical artifacts, so the factor of 3.240779e-19 used above is exact to as many digits as you choose to display.
Where is the centimeter still used today?
Standard small-length unit worldwide except the US