The conversion sites are stuck in 1997.
This one isn't.
Sizes and units, answered instantly — clean tables, live converters, built for the phone in your hand. No pop-ups, no 2,000-word essay before the answer.
Ring sizes
US, UK, EU/ISO, Japan, mm — find your size in any system.
SHOEShoe sizes
EU, US, UK and foot length in cm, for men and women.
OVENOven temperatures
Gas mark, °C, °F and fan oven — the full chart.
COOKCups & grams
Cups to grams per ingredient, plus the butter decoder.
UNITQuick units
Length, weight, volume, area, speed and temperature, live.
CLOTHClothing sizes
Women's dresses, men's shirts & suits — US, UK, EU, IT, JP.
PAPERPaper sizes
A-series, B-series and US Letter/Legal in mm, cm and inches.
TIRETire sizes
Decode 205/55 R16, compare two tyres, see the speedo error.
Why this exists
Every page opens with the converter, not an essay. The full reference table is one scroll away.
Unit factors are exact ISO/NIST definitions. Where charts genuinely vary — shoes, brands — we say so instead of pretending.
Instant results as you type, readable on a phone, printable tables. The way a lookup site should work.