Horsepower vs Kilowatts vs PS: Understanding Engine Power Ratings
Why a car's power can be quoted in hp, PS, kW or bhp, and how to compare engines fairly across countries.
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Plain-English explanations of units, systems and conversions: how they work, where they came from and how to avoid common mistakes.
How to Measure Yourself for Clothes and Shoes (and Use a Size Chart)
Step-by-step instructions for measuring your chest, waist, hips, bust and feet so that you can order the right size from any country.
Read guideDecimal Hours Explained: A Timesheet Conversion Chart
Convert minutes to decimal hours for payroll and invoices, with a printable chart and the formulas to do it yourself.
Read guideA Short History of the Measurement Units We Use Today
From feet and cubits to the redefined kilogram: how the meter, the pound and the second came to mean what they mean.
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