Fermi to Furlong Converter
Convert Fermi (fm) to Furlong (fur) instantly. 1 fm = 4.970970e-18 fur.
Length Converter
31 units available
1 fm = 4.970970e-18 fur
Formula:
fur = fm × 4.970970e-18With your value: 1 fm = 4.970970e-18 fur
How big is that?
Everyday references on a logarithmic scale, all expressed in fermi so you can sanity-check the result.
Other Fermi to Furlong conversions
Fermi to Furlong Conversion Table
| Fermi (fm) | Furlong (fur) |
|---|---|
| 0.5 | 2.485485e-18 |
| 1 | 4.970970e-18 |
| 2 | 9.941939e-18 |
| 5 | 2.485485e-17 |
| 10 | 4.970970e-17 |
| 15 | 7.456454e-17 |
| 20 | 9.941939e-17 |
| 25 | 1.242742e-16 |
| 50 | 2.485485e-16 |
| 100 | 4.970970e-16 |
| 250 | 1.242742e-15 |
| 500 | 2.485485e-15 |
| 1000 | 4.970970e-15 |
Furlong to Fermi Conversion Table
| Furlong (fur) | Fermi (fm) |
|---|---|
| 0.5 | 1.005840e+17 |
| 1 | 2.011680e+17 |
| 2 | 4.023360e+17 |
| 5 | 1.005840e+18 |
| 10 | 2.011680e+18 |
| 15 | 3.017520e+18 |
| 20 | 4.023360e+18 |
| 25 | 5.029200e+18 |
| 50 | 1.005840e+19 |
| 100 | 2.011680e+19 |
| 250 | 5.029200e+19 |
| 500 | 1.005840e+20 |
| 1000 | 2.011680e+20 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Fermi (fm)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Furlong (fur)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Fermi to Furlong
To convert from Fermi (fm) to Furlong (fur), multiply the value by 4.970970e-18.
Formula: fur = fm × 4.970970e-18
Reverse: fm = fur × 2.011680e+17
Step-by-Step Example
- Start with your value in Fermi. For example: 5 fm
- Multiply by the conversion factor: 5 x 4.970970e-18
- The result is: 2.485485e-17 fur
About Fermi
The fermi (fm) is a unit of distance and length. One fermi equals 1.000000 × 10^-15 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: length calculations, engineering and science, education.
About Furlong
The furlong equals 220 yards (201.168 m), one eighth of a mile. It survives almost exclusively in horse racing.
Common uses: horse racing, historic land records.
Frequently Asked Questions
How many Furlong are in 1 Fermi?
There are exactly 4.970970e-18 Furlong in 1 Fermi. This means the conversion factor from Fermi to Furlong is 4.970970e-18.
What is the formula to convert Fermi to Furlong?
The formula to convert Fermi to Furlong is: fur = fm × 4.970970e-18. For example, to convert 10 Fermi to Furlong, you would multiply 10 by 4.970970e-18.
What is a Fermi?
The fermi (fm) is a unit of distance and length. One fermi equals 1.000000 × 10^-15 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Furlong?
The furlong equals 220 yards (201.168 m), one eighth of a mile. It survives almost exclusively in horse racing.
What are the common uses of Fermi?
The Fermi is commonly used in length calculations, engineering and science, education.
Related Length Conversions
Cite this page
UnitConvertLab. (2026). Fermi to Furlong converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/fermi-to-furlong