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AREA CONVERSION

square metre = 10.764 square feet

1 square foot = 0.093 square metre

1 square metre = 1.196 square yards

1 square yard = 0.84 square metre

1 square centimetre = 0.156 square inch

1 square inch = 6.45 square centimetre

VOLUME CONVERSION

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1 cubic centimetre = 0.061 cubic inch

1 cubic inch = 16.387 cubic centimetre

1 cubic foot = 0.028 cubic metre

1 cubic metre = 35.314 cubic foot

LENGTH CONVERSION

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1 centimetre = 0.39 inch

1 inch = 2.54 centimetre

1 metre = 1.09 yard

1 yard = 0.91 metre

1 inch = 0.03 metre

1 metre = 39.37 inch

1 foot = 30.48 centimetre

1 metre = 3.28 feet

How Much Do I Need?

Use these tables to work out how much you need.

Sand

length (ft) × width (ft) × depth (in) ÷ 265 = tonnes + waste

length (m) × width (m) × depth (m) × 1.6 = tonnes + waste

Gravel

length (ft) × width (ft) × depth (in) ÷ 250 = tonnes + waste

length (m) × width (m) × depth (m) × 1.7 = tonnes + waste

Plastering

One tonne of sand plasters approximately 30m² of wall 20mm thick

How much concrete will I need?

Concrete quantities, like any other measure of volume are calculated by multiplying length x width x depth (or height) and are measured in cubic metres (m3).
For example: If a room measures 3m x 4m and the depth of the concrete floor is to be 100mm, the calculation is 3 x 4 x 0.1 = 1.2m3.

To convert cubic yards to cubic metres - multiply by 0.765
To convert cubic feet to cubic metres - multiply by 0.028

Related Links:
Concrete, Sand And Block Suppliers In Your Area
Related Downloads:
Measurements and Quantities Printable Version
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