Hutu Laurentiu

Author and maintainer of ConvertHub

Hutu Laurentiu builds and maintains ConvertHub, writes the guides, checks the conversion formulas against BIPM and NIST sources and fixes reported errors.

How the content is checked

Conversion factors follow the definitions published by BIPM and the NIST SP 811 guide, cited at the bottom of every conversion page. Calculator pages show the formula and the assumptions behind the result, and say what the estimate does not cover.

Guides

• BMI: What It Measures and When It LiesThe BMI formula, correct units, category thresholds, and the well-documented cases where BMI misleads — athletes, elderly, and ethnic differences.
• Celsius to Fahrenheit: the Honest GuideThe exact °C to °F formula, the 2x+30 travel trick, oven conversions and why weather and cooking need different precision.
• How to Convert a PDF to Word (Without Losing Formatting)Which PDFs convert to Word cleanly, which never do, free methods that work, and how to fix broken tables after conversion.
• Cups to Grams: Why Baking Needs a ScaleThe cups to grams problem: why flour volumes lie, the ingredient density table that saves recipes, and when a cup conversion is safe.
• GB, MB and Why Your 1 TB Drive Shows 931 GBBinary vs decimal bytes explained: the 1024 story, why drives show less than advertised, and honest storage planning.
• Inches to Centimetres: Sizes That Actually MatterThe 2.54 factor applied to real life: TV sizes, laptops, clothing, piping and height — with the reference table people actually need.
• Kg to Pounds (and Back) Without a CalculatorThe exact kg to lbs factor (2.2046), the gym trick, luggage limits, medical rounding and why US scales differ from UK ones.
• Kilometres to Miles: the Runner's GuideKm to miles for runners and travellers: race distances, the Fibonacci trick, the 8-5 rule, and speed limit conversions.
• MPG vs L/100km: Reading Fuel Like a LocalWhy US mpg and L/100km run in opposite directions, the UK vs US gallon trap, and the conversion table for car shopping across borders.
• PSI to Bar: Tyres, Pumps and Pressure GaugesPSI to bar conversions for tyres, bikes and compressors: the 14.5 rule, the 2x shortcut, and reading gauges across Europe and the US.

Corrections

If a value or a result looks wrong, use the contact form with the page URL and the value you expected.