Dunk Calculator
About the project

Built for People Who Want Real Numbers

Dunk Calculator exists because people deserve accurate, transparent calculations they can trust — not vague rules of thumb. Find out exactly how high you need to jump to dunk — and how far away you are right now.

About this site: Dunk Calculator is an independent educational resource. Its results are estimates for training and curiosity — not a substitute for guidance from a qualified strength and conditioning coach before you start jump training.

Our team

Who We Are

A small group of hoopers and engineers who believe a number is only useful when you understand where it comes from.

Editorial Team

Dunk Calculator

The Dunk Calculator editorial team builds and reviews jump-training tools for accuracy.

  • Basketball performance research

Engineering Team

Product & Accessibility

Builds the calculation engine and keeps the site fast, accessible, and privacy-first across every device.

  • Web Performance
  • WCAG AA
Our story

How We Started

Dunk Calculator began as a frustration: most online calculators hand you a number with no explanation, no sources, and a page buried in ads. We wanted the opposite.

So we built one thing properly: a dunk calculator that shows its working, and a growing library of guides that explain what the number actually means.

Our mission

What We Do

We turn established formulas into fast, accurate tools you can use in seconds — then wrap them in plain-English explanations of what the result actually means.

The guides exist for the follow-up question every calculator should answer: “okay, so what do I do with this number?”

Trusted source statement

Our credibility statement

We earn trust the boring way: by showing our assumptions, using published athletic-testing figures, and being honest about what an estimated reach can and can’t tell you.

You can read the methodology behind every number on the relevant guide, and cross-check the math yourself.

Documented formulas

The page states the exact equation it uses — rim height plus clearance minus standing reach — and how estimated values are handled.

Published reference figures

The 1.33× reach ratio, the 6" and 9" rim clearances, and the 3–5" approach bonus are widely used athletic-testing figures, not numbers we invented.

Clear scope boundaries

We estimate a target, we don't coach you. Training to dunk carries injury risk — that's a conversation for a qualified strength coach.

Core principles

What makes this different

Exact Math, Not Guesses

Every result comes straight from the published formula — no rounding shortcuts, no averages standing in for the real calculation.

Real Physics, Shown

Hang time and takeoff velocity come from standard projectile-motion equations, and the rim-clearance figures are stated outright — not hidden behind a black box.

No Account Required

The calculator runs entirely in your browser. Nothing you enter is sent to a server, stored, or used to identify you.

Server-Rendered for Speed

Content and FAQs ship as crawlable static HTML. The interactive calculator hydrates on top without replacing the page.

Plain About Limits

An estimated reach is an estimate. We say so, and we tell you what hand size, mechanics, and a measured reach change — instead of pretending one number fits everyone.

Open & Auditable

The formula, the categories, the assumptions — all visible. Check the numbers against your own and verify every step.

Roadmap

What’s coming next

Tap a milestone to see what it includes.