The meter is the SI base unit of length.
Meters to Parsecs Converter — m to pc
Convert Meter (m) to Parsec (pc) using the exact conversion factor (1 meter = 3.240779e-17 parsec). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Meters to Parsecs converter
Converter
Astronomy Converter
Convert astronomical length, mass, time, and distance units by compatible family.
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 1 / 3.08567758e+16.
Distance units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Meters to Parsecs
Meter and Parsec both describe astronomical distances at very different scales — one for measuring within our solar system, the other for the distances between stars — and converting between them helps put the scale of space into perspective. Meter is typically associated with standard length unit worldwide except the US, while Parsec is typically associated with standard distance unit throughout professional astronomy worldwide.
Formula
parsecs = meters × 3.240779e-17
This factor comes from each unit's defined relationship to the category's base unit: 1 meter equals 1 base unit, and 1 parsec equals 3.085678e+16 base units, so dividing one by the other gives the direct meter-to-parsec factor of 3.240779e-17.
Simple example
1 m × 3.240779e-17 = 3.240779e-17 pc
1 meter = 3.240779e-17 parsecs.
Real-world example
4.24 m × 3.240779e-17 = 1.37409e-16 pc
4.24 meters = 1.37409e-16 parsecs.
Conversion table
| Meter (m) | Parsec (pc) |
|---|---|
| 1 m | 3.240779e-17 pc |
| 4.24 m | 1.37409e-16 pc |
| 10 m | 3.240779e-16 pc |
| 100 m | 3.240779e-15 pc |
| 1,000 m | 3.240779e-14 pc |
| 1,000,000 m | 3.240779e-11 pc |
Reverse conversion: Parsec to Meter
3.240779e-17 pc × 3.085678e+16 = 0.9999999107 m
3.240779e-17 parsecs = 0.9999999107 meters.
meters = parsecs × 3.085678e+16
For a page dedicated to this direction, see Parsec to Meter.
Meter vs. Parsec
| Aspect | Meter | Parsec |
|---|---|---|
| Family | SI base unit | non-SI unit used in astronomy |
| Typical use | Universal scientific and everyday length measurement outside the US | Measuring distances to nearby stars via parallax |
| Where it's used | Standard length unit worldwide except the US | Standard distance unit throughout professional astronomy worldwide |
Understanding the Meter
Meter (m) measures distance. The meter is the SI base unit of length, currently defined via the fixed speed of light. It is classified as a SI base unit.
Where it's used: Standard length unit worldwide except the US
Uses of the Meter today
- Universal scientific and everyday length measurement outside the US
- Construction, engineering, and manufacturing internationally
History of the Meter
Defined during the French Revolutionary metric reforms as one ten-millionth of the distance from the North Pole to the Equator, the meter has been redefined several times for precision — a platinum-iridium bar (1889), a krypton-86 wavelength (1960), and since 1983, the distance light travels in 1/299,792,458 of a second.
Historical origin. Meter 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.
Meter — sources
- BIPM — The metre (SI base unit) — Current definition and history of the meter.
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 meter?
1 meter equals 3.240779e-17 parsecs, using the exact defined conversion factor rather than an estimate.
How do I convert meter to parsec?
Multiply the meter value by 3.240779e-17. The converter above does this instantly to whatever precision you set.
How do I convert parsec back to meter?
Use the reverse factor: 1 parsec equals 3.085678e+16 meters. You can also use the swap control in the converter above to flip the direction instantly.
What is a meter?
Meter (m) measures distance. The meter is the SI base unit of length, currently defined via the fixed speed of light. It is classified as a SI base 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 meter to parsec conversion exact?
Yes. Both meter and parsec are defined by fixed standards rather than physical artifacts, so the factor of 3.240779e-17 used above is exact to as many digits as you choose to display.
Where is the meter still used today?
Standard length unit worldwide except the US