You’ve found 5e Jump Calculator, a straightforward online tool built to solve one oddly specific D&D 5e problem: figuring out jumps.

If you’ve ever been the DM who halted the action to look up the exact jumping rules, argued over if that chasm is actually jumpable, or tried to remember exactly how the jumping math works, this site is for you.

So, What Does This Site Do?

5e Jump Calculator is a free web tool that automates the D&D 5e jump math so you don’t have to.

You enter a few details about your character—such as Strength, height, and whether you have a running start—and the calculator immediately calculates your:

Long jump distance

Maximum high jump

Maximum reach during a jump

Key distances based on the 5e rules as written

No guesswork, no dives—just clear results you can rely on.

Why This Calculator Exists

This site was the result of actual game-night problems.

As a D&D fan who runs and joins games, I often hit the same situation:

A player asks, "Can I make that jump?" and we all pause to look up the details.

The 5e rules for jumping are simple on paper but annoying in the moment. I was tired of re-reading the same paragraph every few sessions, so I did the sensible nerd thing: I wrote a little web app.

5e Jump Calculator began as something I used just for my home games, and then I decided to share it in case other tables were running into the same problem.

Under the Hood (Without the Jargon)

This tool implements the official Dungeons & Dragons 5th Edition jumping rules found in the Player’s Handbook. In simple terms, it:

Uses your Strength score to determine base jump distances

Considers whether you have a running start

Uses your height for realistic reach calculations

Sticks closely to RAW and avoids house-rule shortcuts

You never have to think about the math directly. The calculator does the work and gives you the final, table-ready numbers.

Using This Tool During Play

5e Jump Calculator is meant to be:

Fast enough to use mid-session

Clear enough for new players

Accurate enough for rules lawyers

You can use it to:

Verify a jump before the roll

Plan interesting movement options during encounter prep

Resolve player stunts without bogging things down

Open the site, fill in the fields, and you’re done. It’s meant to get out of the way, not become the focus of the session.

Where This Might Go

Right now, 5e Jump Calculator is deliberately simple: it calculates jumps accurately and clearly.

In the future, I might:

Add more 5e movement-related tools

Support more edge cases and optional rules

Polish the interface and add small quality-of-life features

If you find a bug, or if you want to request a feature, feel free to reach out. This site is meant to make your games smoother, and your feedback helps shape what it becomes next.

Thanks for using 5e Jump Calculator. I hope it saves you a few minutes—and a few arguments—every session.