About OakCalculator
OakCalculator is a growing collection of free 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., a small team based in Toronto, Canada. Every calculator is written, tested, and reviewed before it ships, and for subjects that demand deeper expertise we bring in qualified outside reviewers and name them on the page. 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.