This page converts parsecs into furlongs using the factor 1.533880926e+14, and shows the reverse figure alongside it. Both units measure length, which is why one number does the whole job.
The distance at which one astronomical unit subtends one arcsecond: about 3.26 light-years. Ten chains, one eighth of a mile — the unit horse racing is still measured and bet in.
The mil and the millimetre are not the same thing and are out by a factor of about forty. A mil is one thousandth of an inch — 0.0254 mm — and a spec sheet that quotes film thickness in mils means the small unit. British drawings write the same size as "thou". Below the calculator there is a step table for the values people look up most, and a second table putting real length figures into furlongs so the number you get has something to be compared against.
The formula
parsecs- The amount you are converting, in parsecs
1.53388092614e+14- The exact number of furlongs in one parsec
furlongs- The converted result
How it works, step by step
- Enter the value in parsecs.
- It is multiplied by 1.53388092614e+14, the exact factor between the two units.
- The answer is shown in furlongs, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A larger figure: 100 pc in furlongs
Take a larger figure, roughly 100 pc. The conversion is a single multiplication — 100 × 1.53388e+14 — giving 1.53388e+16 fur. Because the relationship is proportional, doubling the input doubles the answer to 3.06776e+16 fur.
A round figure: 1 pc in furlongs
Take a round figure, roughly 1 pc. The conversion is a single multiplication — 1 × 1.53388e+14 — giving 1.53388e+14 fur. Because the relationship is proportional, doubling the input doubles the answer to 3.06776e+14 fur.
How to read your score
Frequently asked questions
How many furlongs are in one parsec?
Exactly 1.53388092614e+14. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert parsecs to furlongs?
furlongs = parsecs × 1.53388092614e+14. Reversed, parsecs = furlongs ÷ 1.53388092614e+14, which is the same as multiplying by 6.51941088099e-15.
Which is the bigger unit, the parsec or the furlong?
The parsec. One parsec equals 1.53388e+14 furlongs.
What does this quantity actually measure?
Both units measure length. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a parsec?
The distance at which one astronomical unit subtends one arcsecond: about 3.26 light-years.
What is a furlong?
Ten chains, one eighth of a mile — the unit horse racing is still measured and bet in.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Is there a quick way to do pc to fur in my head?
Plenty of people do this in their head: multiply by 1.5000e+14 instead of using the exact factor 1.5339e+14. At 100 that shortcut gives 1.5000e+16 furlongs, off by 3.3881e+14 furlongs or about 2.21%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Parsecs to furlongs reference tables
| Parsecs | Furlongs |
|---|---|
| 0.5 pc | 7.6694e+13 fur |
| 1 pc | 1.53388e+14 fur |
| 2 pc | 3.06776e+14 fur |
| 3 pc | 4.60164e+14 fur |
| 5 pc | 7.6694e+14 fur |
| 10 pc | 1.53388e+15 fur |
| 20 pc | 3.06776e+15 fur |
| 25 pc | 3.83470e+15 fur |
| 50 pc | 7.66940e+15 fur |
| 75 pc | 1.15041e+16 fur |
| 100 pc | 1.53388e+16 fur |
| 250 pc | 3.83470e+16 fur |
| 500 pc | 7.66940e+16 fur |
| 1000 pc | 1.53388e+17 fur |
| 5000 pc | 7.66940e+17 fur |
Exact factor: 1 parsec = 1.53388092614e+14 furlongs.
| Quantity | pc | fur |
|---|---|---|
| A credit card’s long edge | 2.774e-18 pc | 0.0004255 fur |
| A door height | 6.585e-17 pc | 0.0101 fur |
| An Olympic pool | 1.620e-15 pc | 0.2485 fur |
| The Eiffel Tower | 1.069e-14 pc | 1.64 fur |
| A marathon | 1.367e-12 pc | 209.8 fur |
| Earth’s diameter | 4.129e-10 pc | 6.334e+04 fur |
Published reference values, converted with the same factor this page uses.