THE LIBRARY
All calculators
Browse practical tools by topic, or search for the calculation you need.
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Celsius to Fahrenheit Calculator
Convert a temperature from degrees Celsius to degrees Fahrenheit using the standard linear conversion formula.
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Box Volume Calculator
Calculate the volume of a rectangular box by multiplying length, width and height. Use the same unit for all three dimensions.
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Circle Area Calculator
Calculate the area enclosed by a circle using pi multiplied by the radius squared. Enter the radius, not the diameter.
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Triangle Area Calculator
Calculate triangle area using one-half multiplied by base and perpendicular height. The height must be measured at a right angle to the base.
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Rectangle Area Calculator
Calculate the area of a rectangle by multiplying its length by its width. Enter both dimensions in the same unit to obtain square units.
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Density Calculator
Calculate density by dividing mass by volume. The result unit depends on the units entered, such as grams per cubic centimetre.
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Speed Calculator
Calculate average speed by dividing distance by elapsed time. The output uses the distance and time units entered, such as kilometres per hour.
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Hourly to Annual Salary Calculator
Convert an hourly rate into estimated weekly and annual gross earnings. The estimate does not account for overtime, unpaid leave, deductions or benefits.
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Commission Calculator
Estimate commission earned by applying a flat percentage to sales. Tiered rates, thresholds, returns and exclusions are not included.
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CAGR Calculator
Calculate compound annual growth rate between two positive time-separated values. CAGR smooths the path into an annualised rate and does not describe volatility between endpoints.