Formula

ly = fm / 9.46055E+30

Quick Rough Maths

To get the Light Years, divide the number of Fermis by 9.46055E+18 trillion

Fermis (fm) in 1 Light Year

There are 9.46055E+30 Fermis in 1 Light Year

Light Years (ly) in 1 Fermi

There are 0 Light Years in 1 Fermi

Symbol: **fm**

Unit System: Non-SI metric

Unit System: Non-SI metric

The fermis is a unit of length in the non-SI metric system and uses the symbol fm.

One fermi is equal to 1×10−15m or 3.9370×10−14 in.

It is used to measure nuclear distances and was named after the Italian physicist Enrico Fermi (1901–1954). It has now been replaced with the SI-derived term femtometre.

Symbol: **ly**

Unit System: Astronomical System of Units

Unit System: Astronomical System of Units

The light year is a unit of length in the Astronomical system of units. It uses the symbol ly.

Often confused with a unit of time as it contains the word "year", it is actually defined by the International Astronomical Union (IAU) as the amount of distance that light travels in a vacuum in one Julian year (365.25 days).

Using the speed of light (299,792,458 m/s or 'c') and the Julian year (as apposed to the Gregorian year which is 365.2425 days), we can equivalate 1 light year as 9,460,730,472,580,800 metres or ≈ 9.46 trillion kilometres.

10000fm = 0ly

20000fm = 0ly

30000fm = 0ly

40000fm = 0ly

50000fm = 0ly

60000fm = 0ly

70000fm = 0ly

80000fm = 0ly

90000fm = 0ly

100000fm = 0ly

110000fm = 0ly

120000fm = 0ly

130000fm = 0ly

140000fm = 0ly

150000fm = 0ly

160000fm = 0ly

170000fm = 0ly

180000fm = 0ly

190000fm = 0ly

200000fm = 0ly

210000fm = 0ly

220000fm = 0ly

230000fm = 0ly

240000fm = 0ly

260000fm = 0ly

270000fm = 0ly

280000fm = 0ly

290000fm = 0ly

300000fm = 0ly

310000fm = 0ly

320000fm = 0ly

330000fm = 0ly

340000fm = 0ly

350000fm = 0ly

360000fm = 0ly

370000fm = 0ly

380000fm = 0ly

390000fm = 0ly

400000fm = 0ly

410000fm = 0ly

420000fm = 0ly

430000fm = 0ly

440000fm = 0ly

450000fm = 0ly

460000fm = 0ly

470000fm = 0ly

480000fm = 0ly

490000fm = 0ly

510000fm = 0ly

520000fm = 0ly

530000fm = 0ly

540000fm = 0ly

550000fm = 0ly

560000fm = 0ly

570000fm = 0ly

580000fm = 0ly

590000fm = 0ly

600000fm = 0ly

610000fm = 0ly

620000fm = 0ly

630000fm = 0ly

640000fm = 0ly

650000fm = 0ly

660000fm = 0ly

670000fm = 0ly

680000fm = 0ly

690000fm = 0ly

700000fm = 0ly

710000fm = 0ly

720000fm = 0ly

730000fm = 0ly

740000fm = 0ly

760000fm = 0ly

770000fm = 0ly

780000fm = 0ly

790000fm = 0ly

800000fm = 0ly

810000fm = 0ly

820000fm = 0ly

830000fm = 0ly

840000fm = 0ly

850000fm = 0ly

860000fm = 0ly

870000fm = 0ly

880000fm = 0ly

890000fm = 0ly

900000fm = 0ly

910000fm = 0ly

920000fm = 0ly

930000fm = 0ly

940000fm = 0ly

950000fm = 0ly

960000fm = 0ly

970000fm = 0ly

980000fm = 0ly

990000fm = 0ly