Length Conversion Matrix — All Factors in One Table

From \ To	mMeter	kmKilometer	cmCentimeter	mmMillimeter	miMile	ydYard	ftFoot	inInch	nmiNautical Mile	µmMicrometer	nmNanometer	lyLight Year	furFurlong	ftmFathom	ÅAngstrom
mMeter	—	0.001	100	1,000	0.0006214	1.09361	3.28084	39.3701	0.00054	1,000,000	1,000,000,000	1.0570e-16	0.004971	0.5468	10,000,000,000
kmKilometer	1,000	—	100,000	1,000,000	0.6214	1,093.61	3,280.84	39,370.08	0.54	1,000,000,000	1,000,000,000,000	1.0570e-13	4.97097	546.807	10,000,000,000,000
cmCentimeter	0.01	1.0000e-5	—	10	6.2137e-6	0.01094	0.03281	0.3937	5.3996e-6	10,000	10,000,000	1.0570e-18	4.9710e-5	0.005468	100,000,000
mmMillimeter	0.001	1.0000e-6	0.1	—	6.2137e-7	0.001094	0.003281	0.03937	5.3996e-7	1,000	1,000,000	1.0570e-19	4.9710e-6	0.0005468	10,000,000
miMile	1,609.34	1.60934	160,934.4	1,609,344	—	1,760	5,280	63,360	0.869	1,609,344,000	1,609,344,000,000	1.7011e-13	8	880	16,093,440,000,000
ydYard	0.9144	0.0009144	91.44	914.4	0.0005682	—	3	36	0.0004937	914,400	914,400,000	9.6652e-17	0.004545	0.5	9,144,000,000
ftFoot	0.3048	0.0003048	30.48	304.8	0.0001894	0.3333	—	12	0.0001646	304,800	304,800,000	3.2217e-17	0.001515	0.1667	3,048,000,000
inInch	0.0254	2.5400e-5	2.54	25.4	1.5783e-5	0.02778	0.08333	—	1.3715e-5	25,400	25,400,000	2.6848e-18	0.0001263	0.01389	254,000,000
nmiNautical Mile	1,852	1.852	185,200	1,852,000	1.15078	2,025.37	6,076.12	72,913.39	—	1,852,000,000	1,852,000,000,000	1.9576e-13	9.20624	1,012.69	18,520,000,000,000
µmMicrometer	1.0000e-6	1.0000e-9	1.0000e-4	0.001	6.2137e-10	1.0936e-6	3.2808e-6	3.9370e-5	5.3996e-10	—	1,000	1.0570e-22	4.9710e-9	5.4681e-7	10,000
nmNanometer	1.0000e-9	1.0000e-12	1.0000e-7	1.0000e-6	6.2137e-13	1.0936e-9	3.2808e-9	3.9370e-8	5.3996e-13	0.001	—	1.0570e-25	4.9710e-12	5.4681e-10	10
lyLight Year	9.4607e15	9,460,700,000,000	9.4607e17	9.4607e18	5,878,606,438,399.75	1.0346e16	3.1039e16	3.7247e17	5,108,369,330,453.56	9.4607e21	9.4607e24	—	47,028,851,507,197.96	5.1732e15	9.4607e25
furFurlong	201.168	0.2012	20,116.8	201,168	0.125	220	660	7,920	0.1086	201,168,000	201,168,000,000	2.1264e-14	—	110	2,011,680,000,000
ftmFathom	1.8288	0.001829	182.88	1,828.8	0.001136	2	6	72	0.0009875	1,828,800	1,828,800,000	1.9330e-16	0.009091	—	18,288,000,000
ÅAngstrom	1.0000e-10	1.0000e-13	1.0000e-8	1.0000e-7	6.2137e-14	1.0936e-10	3.2808e-10	3.9370e-9	5.3996e-14	0.0001	0.1	1.0570e-26	4.9710e-13	5.4681e-11	—

From \ To

—

—

—

—

—

—

—

—

—

—

—

—

47,028,851,507,197.96

—

—

—

How to use this table

Find your starting unit in the left column (From). Move across that row to the target unit (To) at the top. The cell where they meet is the conversion factor — the number of target units equal to one starting unit.

Click any cell to open the full converter for that pair. Click any unit abbreviation (row or column header) to open that unit's encyclopedia page.