Pebble Unit Converter

A calm unit converter with live results, swap, history and favorites. Length, mass, volume, temperature and more — no clutter, no tracking.

Pebble is a calm, precise unit converter built for everyday measurement work.

A single screen, an honest keypad, and only the units you actually use — no popups, no tracking, no upsells.

KEY FEATURES • Live conversion as you type, with full Foundation Measurement precision • Categories: length, mass, volume, temperature, speed, energy, pressure, duration, data and area • One-tap swap between source and target units • History of recent conversions, recall any with a single tap • Favorites: pin the unit pairs you use most for instant access • Negative values and decimal entry with a dedicated keypad • Quiet sand-and-slate look, designed for daily use

DESIGNED FOR FOCUS Whether you are sizing a part, cooking from a foreign recipe, or checking a spec sheet, Pebble stays out of the way and just answers the number.

PRIVACY No tracking. No accounts. No network calls. Your history and favorites live on your device.