Fathoms to inches

inches = fathoms × 72

How to convert fathoms to inches

One fathom is 72 inches, so multiply the number of fathoms by 72. For example, 20 fathoms is 20 × 72 = 1,440 inches. To go back, divide by the same number, or multiply by 0.01388889.

Quick estimate

Multiplying by about 70 gets within 2.8% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Length conversions come up in DIY and building plans, running and cycling distances, maps, clothing sizes and travel between countries that use metric and imperial units.

fathoms	inches
1 fm	72 in
2 fm	144 in
3 fm	216 in
4 fm	288 in
5 fm	360 in
6 fm	432 in
7 fm	504 in
8 fm	576 in
9 fm	648 in
10 fm	720 in
11 fm	792 in
12 fm	864 in
13 fm	936 in
14 fm	1,008 in
15 fm	1,080 in
16 fm	1,152 in
17 fm	1,224 in
18 fm	1,296 in
19 fm	1,368 in
20 fm	1,440 in
25 fm	1,800 in
30 fm	2,160 in
40 fm	2,880 in
50 fm	3,600 in
60 fm	4,320 in
70 fm	5,040 in
75 fm	5,400 in
80 fm	5,760 in
90 fm	6,480 in
100 fm	7,200 in
120 fm	8,640 in
150 fm	10,800 in
200 fm	14,400 in
250 fm	18,000 in
300 fm	21,600 in
400 fm	28,800 in
500 fm	36,000 in
750 fm	54,000 in
1,000 fm	72,000 in
1,500 fm	108,000 in
2,000 fm	144,000 in
5,000 fm	360,000 in
10,000 fm	720,000 in

Questions

How many inches are in a fathom?

72 inches.

How do I convert fathoms to inches in a spreadsheet?

Put the value in A1 and type =A1*72, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.