We give you the number, then get out of the way.
OmniCalc is a collection of converters, calculators and customs tools built around a single promise: the right answer before you finish typing — on a page that loads instantly and never jumps.
Instant
The answer keeps pace with your keystrokes. No submit button, no spinner — the result recomputes live as you change any input.
Exact
Conversion factors follow international definitions and finance formulas use documented conventions — all checked against reference values.
Calm
One clear answer per tool, generous space, quiet colour. Guidance is helpful rather than blocking — a gentle note, never a red wall.
Trustworthy
Each tool shows its formula, links its sources, and dates when it was last reviewed. Where money or health is involved, we say plainly it's an estimate.
Your numbers stay with you
Every tool computes in your browser. There’s no server round-trip between the moment you edit a number and the moment the answer changes — so results appear as fast as you can type, and what you enter is never sent to us, logged, or stored.
If a tool remembers your recent calculations, that history lives in your own browser’s storage. You can clear it any time, and it never leaves the device.
No invented team bios, no borrowed authority. The trust we ask for is the kind you can verify: open formulas, cited references, and a plain account of how each number is produced.