Units Precision Unit Converter

Marcus' Apps

In-app purchases

About this app

Units is a precision unit converter built like an instrument — fast, exact, and distraction-free. Type a value and watch it resolve across every unit in the category, live, in a single readout.

WHAT YOU CAN DO
• 13 categories, 100+ units — length, mass, temperature, area, volume, speed, time, data, currency, cooking, energy, power, pressure
• Live "convert-to-all" — see your value in every unit at once
• A fast, satisfying custom keypad
• Search any unit, symbol, or category
• Swap, copy, and reuse conversions in a tap
• Adjustable precision (4 / 6 / 8 / 10 significant figures)
• Fully offline — no account, no tracking, no signal required

FREE FOR EVERYONE
6 everyday categories (length, mass, temperature, volume, time, speed), the full converter, search, and history.

UNITS PRO (optional upgrade)
• All 13 categories unlocked (area, data, currency, cooking, energy, power, pressure)
• Save & pin unlimited conversions
• Premium themes — Amber, Mono, and Paper (light mode)
• No ads, ever
Plans: $2.99/mo, $14.99/yr (save 58%), or $29.99 one-time lifetime.

Note: currency conversions use indicative, static reference rates (not live market rates) and work fully offline.

Precise by default. Private by design. Download Units and convert anything in seconds.

What’s new

Units — 13 categories, 100+ units, live convert-to-all.
• Drag to reorder your category grid (long-press a card)
• 5 themes, adjustable precision, fully offline
• Optional Pro upgrade: unlimited saves, all categories, premium themes