From the blog
Conversion Guides & Reference Articles
Practical how-to guides, formula breakdowns, and reference tables for the world's most searched unit conversion questions.
Temperature
How to Convert Celsius to Fahrenheit — Formula and Examples
The exact formula, 5 worked examples, a 10-point reference table, and mental math shortcuts.
Length
Meters to Feet: The Complete Conversion Guide
Formula, real-world examples, a 1m–10m reference table, and the fastest mental shortcut.
Weight
Kilograms to Pounds — Chart, Formula and Converter
Exact formula, a 10kg–100kg reference chart, and worked examples for travel and fitness.
Height
How Tall Is 180 cm in Feet and Inches?
The exact answer (5'10.87"), step-by-step calculation, and a 155–200cm reference table.
Pressure
Bar to PSI: Tire Pressure Conversion Guide
Formula, worked examples for cars, trucks and bikes, a 1–10 bar table, and safety tips.
Cooking
US Cup to Grams — Flour, Sugar, Butter and More
Why density matters, 6 ingredient tables, and expert tips for accurate baking measurement.
Clothing
How to Read International Clothing Size Charts
US, UK, EU, and Japanese sizing compared for men and women, with common mistakes to avoid.
Fuel Economy
Miles Per Gallon to L/100km Conversion Guide
The reciprocal formula, a 10–60 MPG table, EV metrics context, and US vs UK gallon differences.
Music
What Is MIDI? Note Numbers, Frequencies and Musical Notes Explained
MIDI mapping table, the frequency formula, and real-world DAW and synthesizer context.
Global
Metric vs Imperial: Which Countries Use Which?
Why the US never switched, the core unit differences, and how Canada uses both systems.
Shoe Sizes
How to Convert Shoe Sizes: US, UK, EU, Japan
Men's and women's conversion tables, how each system works, and international buying tips.
Pressure
Understanding Pressure Units: Bar, PSI, Pascal, Atmosphere
Definitions, a 4-unit cross-reference matrix, and examples from weather to espresso machines.