MEASUREMENTS AND CONVERSIONS METRIC AND IMPERIALWe often need to convert measurements from metric to Imperial or vice versa whether carrying out DIY or buying carpets etc., here are some useful tables to help. The tables cover conversions for length and surface area. Formulae and other measurement conversions | LENGTH – METRIC | | UNIT | ABBREVIATION | METRIC EQUIVALENT | IMPERIAL EQUIVALENT | 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 | | UNIT | ABBREVIATION | IMPERIAL EQUIVALENT | METRIC EQUIVALENT | 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 | | UNIT | ABBREVIATION | METRIC EQUIVALENT | IMPERIAL EQUIVALENT | | 1 square millimetre | mm² | | 0.00155 sq, inches | 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 | UNIT | ABBREVIATION | IMPERIAL EQUIVALENT | METRIC EQUIVALENT | 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 |
Brick measurements and quantities (Imperial and Metric) Construction material calculators | 
