| mile (US Survey) | 1 mi (US) | 2 mi (US) | 3 mi (US) | 4 mi (US) | 5 mi (US) | 6 mi (US) | 7 mi (US) | 8 mi (US) | 9 mi (US) | 10 mi (US) | 11 mi (US) | 12 mi (US) | 13 mi (US) | 14 mi (US) | 15 mi (US) | 16 mi (US) | 17 mi (US) | 18 mi (US) | 19 mi (US) | 20 mi (US) | 21 mi (US) | 22 mi (US) | 23 mi (US) | 24 mi (US) | 25 mi (US) | 26 mi (US) | 27 mi (US) | 28 mi (US) | 29 mi (US) | 30 mi (US) | 31 mi (US) | 32 mi (US) | 33 mi (US) | 34 mi (US) | 35 mi (US) | 36 mi (US) | 37 mi (US) | 38 mi (US) | 39 mi (US) | 40 mi (US) | 41 mi (US) | 42 mi (US) | 43 mi (US) | 44 mi (US) | 45 mi (US) | 46 mi (US) | 47 mi (US) | 48 mi (US) | 49 mi (US) | 50 mi (US) | 51 mi (US) | 52 mi (US) | 53 mi (US) | 54 mi (US) | 55 mi (US) | 56 mi (US) | 57 mi (US) | 58 mi (US) | 59 mi (US) | 60 mi (US) | 61 mi (US) | 62 mi (US) | 63 mi (US) | 64 mi (US) | 65 mi (US) | 66 mi (US) | 67 mi (US) | 68 mi (US) | 69 mi (US) | 70 mi (US) | 71 mi (US) | 72 mi (US) | 73 mi (US) | 74 mi (US) | 75 mi (US) | 76 mi (US) | 77 mi (US) | 78 mi (US) | 79 mi (US) | 80 mi (US) | 81 mi (US) | 82 mi (US) | 83 mi (US) | 84 mi (US) | 85 mi (US) | 86 mi (US) | 87 mi (US) | 88 mi (US) | 89 mi (US) | 90 mi (US) | 91 mi (US) | 92 mi (US) | 93 mi (US) | 94 mi (US) | 95 mi (US) | 96 mi (US) | 97 mi (US) | 98 mi (US) | 99 mi (US) | 100 mi (US) |
| chain | 80.0000009 ch | 160.0000019 ch | 240.0000028 ch | 320.0000038 ch | 400.0000047 ch | 480.0000057 ch | 560.0000066 ch | 640.0000076 ch | 720.0000085 ch | 800.0000094 ch | 880.0000104 ch | 960.0000113 ch | 1,040.0000123 ch | 1,120.0000132 ch | 1,200.0000142 ch | 1,280.0000151 ch | 1,360.0000161 ch | 1,440.0000170 ch | 1,520.0000179 ch | 1,600.0000189 ch | 1,680.0000198 ch | 1,760.0000208 ch | 1,840.0000217 ch | 1,920.0000227 ch | 2,000.0000236 ch | 2,080.0000246 ch | 2,160.0000255 ch | 2,240.0000264 ch | 2,320.0000274 ch | 2,400.0000283 ch | 2,480.0000293 ch | 2,560.0000302 ch | 2,640.0000312 ch | 2,720.0000321 ch | 2,800.0000331 ch | 2,880.0000340 ch | 2,960.0000349 ch | 3,040.0000359 ch | 3,120.0000368 ch | 3,200.0000378 ch | 3,280.0000387 ch | 3,360.0000397 ch | 3,440.0000406 ch | 3,520.0000416 ch | 3,600.0000425 ch | 3,680.0000434 ch | 3,760.0000444 ch | 3,840.0000453 ch | 3,920.0000463 ch | 4,000.0000472 ch | 4,080.0000482 ch | 4,160.0000491 ch | 4,240.0000501 ch | 4,320.0000510 ch | 4,400.0000519 ch | 4,480.0000529 ch | 4,560.0000538 ch | 4,640.0000548 ch | 4,720.0000557 ch | 4,800.0000567 ch | 4,880.0000576 ch | 4,960.0000586 ch | 5,040.0000595 ch | 5,120.0000604 ch | 5,200.0000614 ch | 5,280.0000623 ch | 5,360.0000633 ch | 5,440.0000642 ch | 5,520.0000652 ch | 5,600.0000661 ch | 5,680.0000671 ch | 5,760.0000680 ch | 5,840.0000689 ch | 5,920.0000699 ch | 6,000.0000708 ch | 6,080.0000718 ch | 6,160.0000727 ch | 6,240.0000737 ch | 6,320.0000746 ch | 6,400.0000756 ch | 6,480.0000765 ch | 6,560.0000774 ch | 6,640.0000784 ch | 6,720.0000793 ch | 6,800.0000803 ch | 6,880.0000812 ch | 6,960.0000822 ch | 7,040.0000831 ch | 7,120.0000841 ch | 7,200.0000850 ch | 7,280.0000859 ch | 7,360.0000869 ch | 7,440.0000878 ch | 7,520.0000888 ch | 7,600.0000897 ch | 7,680.0000907 ch | 7,760.0000916 ch | 7,840.0000926 ch | 7,920.0000935 ch | 8,000.0000944 ch |
≡ 5280 US Survey feet ≡ (5280 × 1200⁄3937) m
| 1 miles (US Survey) ≈ 80.000000944482 chains | 4 miles (US Survey) ≈ 320.00000377793 chains |
| 1.5 miles (US Survey) ≈ 120.00000141672 chains | 4.5 miles (US Survey) ≈ 360.00000425017 chains |
| 2 miles (US Survey) ≈ 160.00000188896 chains | 5 miles (US Survey) ≈ 400.00000472241 chains |
| 2.5 miles (US Survey) ≈ 200.00000236121 chains | 5.5 miles (US Survey) ≈ 440.00000519465 chains |
| 3 miles (US Survey) ≈ 240.00000283345 chains | 6 miles (US Survey) ≈ 480.00000566689 chains |
A chain is a unit of length. It measures 66 feet, or 22 yards, or 100 links, or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile. An acre is the area of 10 square chains (that is, an area of one chain by one furlong). The chain has been used for several centuries in Britain and in some other countries influenced by British practice.
| 1 chains ≈ 0.012499999852425 miles (US Survey) | 4 chains ≈ 0.049999999409699 miles (US Survey) |
| 1.5 chains ≈ 0.018749999778637 miles (US Survey) | 4.5 chains ≈ 0.056249999335911 miles (US Survey) |
| 2 chains ≈ 0.024999999704849 miles (US Survey) | 5 chains ≈ 0.062499999262123 miles (US Survey) |
| 2.5 chains ≈ 0.031249999631062 miles (US Survey) | 5.5 chains ≈ 0.068749999188336 miles (US Survey) |
| 3 chains ≈ 0.037499999557274 miles (US Survey) | 6 chains ≈ 0.074999999114548 miles (US Survey) |
| 1 miles (US Survey) ≈ 80.0000009 chains |
| 1 chains ≈ 0.0125000 miles (US Survey) |