How many femtometre in 1 ri?
The answer is 3.9272727272727E+18.
We assume you are converting between femtometre and ri [Japan].
You can view more details on each measurement unit: femtometre or
ri
The SI base unit for length is the metre.
1 metre is equal to 1.0E+15 femtometre, or 0.00025462962962963 ri.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between femtometers and ri [Japan].
Type in your own numbers in the form to convert the units!

››Want other units?

You can do the reverse unit conversion from
ri to femtometre, or enter any two units below:

The SI prefix "femto" represents a factor of
10^{-15}, or in exponential notation, 1E-15.

So 1 femtometre = 10^{-15} metre.

››Definition: Ri

The Japanese ri is 12,960 shaku.

››Metric conversions and more

ConvertUnits.com provides an online
conversion calculator for all types of measurement units.
You can find metric conversion tables for SI units, as well
as English units, currency, and other data. Type in unit
symbols, abbreviations, or full names for units of length,
area, mass, pressure, and other types. Examples include mm,
inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm,
metres squared, grams, moles, feet per second, and many more!