customary system
metric system
100

1 foot to inches

12 inches

100

1 meter to cm

100 cm

200

3 feet to inches

36 inches

200

1 meter to mm

1000 mm

300

36 inches to yards

1 yard

300

3 meters to cm

300 cm

400

72 inches to yards

2 yards
400

35 meters to cm

3500

500

1 mile to yards

1760

500

3.96532 km to mm

3965320 mm

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