›› Convert light day to femtometre


Did you mean to convert light-day to femtometre

›› More information from the unit converter

How many light-day in 1 femtometer? The answer is 3.8606955462749E-29.
We assume you are converting between light day and femtometre.
You can view more details on each measurement unit:
light-day or femtometer
The SI base unit for length is the metre.
1 metre is equal to 3.8606955462749E-14 light-day, or 1.0E+15 femtometer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light days and femtometers.
Type in your own numbers in the form to convert the units!

›› Quick conversion chart of light-day to femtometer

1 light-day to femtometer = 2.59020683712E+28 femtometer

2 light-day to femtometer = 5.18041367424E+28 femtometer

3 light-day to femtometer = 7.77062051136E+28 femtometer

4 light-day to femtometer = 1.036082734848E+29 femtometer

5 light-day to femtometer = 1.29510341856E+29 femtometer

6 light-day to femtometer = 1.554124102272E+29 femtometer

7 light-day to femtometer = 1.813144785984E+29 femtometer

8 light-day to femtometer = 2.072165469696E+29 femtometer

9 light-day to femtometer = 2.331186153408E+29 femtometer

10 light-day to femtometer = 2.59020683712E+29 femtometer

›› Want other units?

You can do the reverse unit conversion from femtometer to light-day, or enter any two units below:

Enter two units to convert


›› Common length conversions

light-day to span
light-day to zoll
light-day to furlong
light-day to royal foot
light-day to hectometer
light-day to mille
light-day to hvat
light-day to city block
light-day to zettameter
light-day to petameter

›› Definition: Light-day

A light day (also written light-day) is a unit of length. It is defined as the distance light travels in an absolute vacuum in one day (of 86,400 seconds) or 25,902,068,371,200 metres (~26 Tm).

Note that this value is exact, since the metre is actually defined in terms of the speed of light. The light day isn't very frequently used at all since there are few astronomical objects or distances of that magnitude; the Oort cloud, for example, is thought to extend between 290 and 580 light-days out from the Sun.

›› Definition: Femtometre

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

So 1 femtometre = 10-15 metre.

›› 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!