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A unit of length used to measure nuclear distances, = 10−15 meter. Named for the Italian physicist Enrico Fermi (1901–1954). Now obsolete, replaced by the SI term femtometer (symbol, fm); 1 fermi = 1 femtometer.
In relation to the base unit of [length] => (meters), 1 Roman Actus (actus) is equal to 35.5 meters, while 1 Fermi (fermi) = 1.0E-15 meters.| 1 Roman Actus | to common length units |
|---|---|
| 1 actus | = 35.5 meters (m) |
| 1 actus | = 0.0355 kilometers (km) |
| 1 actus | = 3550 centimeters (cm) |
| 1 actus | = 116.46981627297 feet (ft) |
| 1 actus | = 1397.6377952756 inches (in) |
| 1 actus | = 38.823272090989 yards (yd) |
| 1 actus | = 0.022058677324425 miles (mi) |
| 1 actus | = 3.7522460627841E-15 light years (ly) |
| 1 actus | = 134173.24525017 pixels (PX) |
| 1 actus | = 2.21875E+36 planck length (pl) |
| Roman Actus | to Fermi (table conversion) |
|---|---|
| 1 actus | = 3.55E+16 fermi |
| 2 actus | = 7.1E+16 fermi |
| 3 actus | = 1.065E+17 fermi |
| 4 actus | = 1.42E+17 fermi |
| 5 actus | = 1.775E+17 fermi |
| 6 actus | = 2.13E+17 fermi |
| 7 actus | = 2.485E+17 fermi |
| 8 actus | = 2.84E+17 fermi |
| 9 actus | = 3.195E+17 fermi |
| 10 actus | = 3.55E+17 fermi |
| 20 actus | = 7.1E+17 fermi |
| 30 actus | = 1.065E+18 fermi |
| 40 actus | = 1.42E+18 fermi |
| 50 actus | = 1.775E+18 fermi |
| 60 actus | = 2.13E+18 fermi |
| 70 actus | = 2.485E+18 fermi |
| 80 actus | = 2.84E+18 fermi |
| 90 actus | = 3.195E+18 fermi |
| 100 actus | = 3.55E+18 fermi |
| 200 actus | = 7.1E+18 fermi |
| 300 actus | = 1.065E+19 fermi |
| 400 actus | = 1.42E+19 fermi |
| 500 actus | = 1.775E+19 fermi |
| 600 actus | = 2.13E+19 fermi |
| 700 actus | = 2.485E+19 fermi |
| 800 actus | = 2.84E+19 fermi |
| 900 actus | = 3.195E+19 fermi |
| 1000 actus | = 3.55E+19 fermi |
| 2000 actus | = 7.1E+19 fermi |
| 4000 actus | = 1.42E+20 fermi |
| 5000 actus | = 1.775E+20 fermi |
| 7500 actus | = 2.6625E+20 fermi |
| 10000 actus | = 3.55E+20 fermi |
| 25000 actus | = 8.875E+20 fermi |
| 50000 actus | = 1.775E+21 fermi |
| 100000 actus | = 3.55E+21 fermi |
| 1000000 actus | = 3.55E+22 fermi |
| 1000000000 actus | = 3.55E+25 fermi |