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.

Why this exists

The answer first

Every page opens with the converter, not an essay. The full reference table is one scroll away.

Honest numbers

Unit factors are exact ISO/NIST definitions. Where charts genuinely vary — shoes, brands — we say so instead of pretending.

Built for 2026

Instant results as you type, readable on a phone, printable tables. The way a lookup site should work.