Convertal

About

Convertal converts units the moment you need it, without leaving the page.

Open the popup for a live two-way converter (type in either box), select any
quantity on a page — like "26.2 miles" or "72°F" — and right-click to
convert it instantly, or type `cv 180 lb to st` straight into the address
bar and read the answer in the suggestion.

Free categories: Length, Mass and Temperature, with every common unit and
sensible defaults for your region (metric, US or UK).

PRIVATE BY DESIGN
Nothing you convert is uploaded or stored. There are no network permissions
at all — conversion happens entirely inside your browser. Only your unit
preferences are remembered.

Want more? The Convertal app for iPhone and Android adds 20+ categories —
area, volume, speed, data storage, energy, pressure, currency and more —
details at convertal.co.uk.