LENGTH
– METRIC

1 millimetre

mm

0.0394 inches

1 centimetre

cm

10 mm

0.3937 inches

1 metre

m

100 cm

1000 mm

3.281 feet

1.0936 yards

1 kilometre

km

1000 m

0.6214 miles

LENGTH
– IMPERIAL

1 inch

in.

25.4 mm/2.54 cm

1 foot

ft.

12 ins.

30.48 cm / 0.3048 m

1 yard

yd.

3 ft./ 36 ins.

91.44 cm/ 0.9144 m

1 rod

5.5 yards

5.0292 m

1 chain

22 yards

20.117 m

1 furlong

220 yards

201.17 m

1 mile

1760 yards

1679.3 m/ 1.6093 km

SURFACE
AREA – METRIC

mm²

1 square centimetre

cm²

100 mm²

0.1550 sq. inches

1 square metre

m²

10,000 cm²

10.764 sq. ft.

1.1960 sq. yards

1 are

a

100 m²

119.60 sq. yards

1 hectare

ha

100 acres

2.4711 acres

1 square kilometre

km²

100 hectares

0.3861 sq. miles

SURFACE
AREA – IMPERIAL

1 square inch

Sq. in

645.2 mm²/6.4516
cm²

1 square foot

Sq. ft

144 sq. inches

9290.30 cm²/
0.0929 m²

1 square yard

Sq. yd

9 sq. ft.

0.8361 m²

1 acre

4840 sq. yds.

4046.9 m²

1 square mile

Sq. mile

640 acres

259.0 hectares