📐 Conversions & Units
Conversions & Units calculators
Metric to imperial conversions for length, area, volume, weight, temperature and fluids — feet/inches, acres, cubic yards, gallons, BTU and more.
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Acres to Square Metres
Converts acres to m², hectares, and square feet and back
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Celsius to Fahrenheit Calculator
Converts between Celsius and Fahrenheit for concrete and drying conditions
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Cubic Metres to Cubic Yards
Converts m³ to cubic yards and back for concrete and aggregate
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Cubic Metres to Tonnes
Converts m³ to tonnes for concrete, sand, and gravel by density
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Hectares to Acres Calculator
Converts hectares to acres and square metres and back
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Kg / Lbs to Bags Calculator
Converts weight to number of bags for common bag sizes
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kW to BTU Calculator
Converts kilowatts to BTU per hour for heating and cooling sizing
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Linear Metres to Square Metres
Converts linear metres to m² by material width
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Litres to Gallons Calculator
Converts litres to UK and US gallons for tanks and plumbing
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Metres to Feet and Inches
Converts metres to feet and inches and back
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Room Area Calculator
Calculates floor area for rectangular, L-shaped, and irregular rooms
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Slope / Gradient Calculator
Converts between percentage gradient, degrees, and ratio
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Square Metres to Square Feet
Converts m² to ft² and ft² to m² instantly
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Volume Calculator
Calculates volume of rectangular, cylindrical, and trapezoidal shapes
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Waste / Overage Factor Calculator
Adds correct waste percentage to any material quantity