About OakCalculator
OakCalculator is a collection of 2,100+ calculators and unit converters. Open any page, type the numbers, get the answer. That's the whole product.
What we are
A calculator site that respects your time. Every tool here is built around a single question and answered in under a second. Calculators for finance, health, math, and everyday numbers. Converters for length, weight, temperature, volume, and more.
Who built it
Built by The Nomad Company Inc. (Amir Shehzad), a one-person studio based in Ontario, Canada. Editorial and engineering are the same desk. Every calculator is reviewed by a human before it ships — see our methodology for the process.
Why we're fast
Every page renders statically and ships from Vercel's edge network. Calculators are interactive before the page finishes painting. Typography is self-hosted. Third-party scripts are limited to first-party, anonymous analytics. Core Web Vitals targets are tighter than Google's defaults — because speed is a ranking signal and a user experience signal at the same time.
What we commit to
- Accounts are optional and will stay that way.
- We don't sell your data or track you across the web. Analytics are anonymous and first-party.
- Affiliate upsells, "recommended tools", and newsletter popups are absent by design.
- When display ads arrive, they sit below the calculator — the answer is always the first thing you see.
How to reach us
Corrections, partnerships, press, or a missing calculator — head to /contact. Replies usually within 2 business days.