Thanks for visiting 5e Jump Calculator, a small online tool created to fix a common D&D 5e table slowdown: jumping.

If you’ve ever stopped a session to dig through the PHB, argued over how far a character can really leap, or tried to remember which stats affect jump distance, this tool was built with you in mind.

So, What Does This Site Do?

5e Jump Calculator is a no-frills calculator that takes the 5e jump rules and does the math for you.

You plug in your character’s stats—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

Other useful jump-related numbers based on the official rules

No page-flipping, no rough estimates—just clear results you can rely on.

Why This Calculator Exists

This site was the result of repeated rules questions at the table.

As a DM who also plays regularly, I often hit the same situation:

A player asks, "Can I make that jump?" and everyone stops to argue about the math.

The 5e rules for jumping are simple on paper but annoying in the moment. I found myself reaching for the PHB over and over again, so I did the sensible nerd thing: I wrote a little web app.

5e Jump Calculator started as a personal helper, and then I cleaned it up and put it online in case other tables were running into the same slowdown.

Under the Hood (Without the Jargon)

This tool implements the official Dungeons & Dragons 5th Edition jumping rules as laid out in the core rules. In simple terms, it:

Uses your Strength score to determine base jump distances

Accounts for running vs standing jumps

Factors in your height and reach where appropriate

Sticks closely to RAW and avoids house-rule shortcuts

You don’t need to know the exact formula. The takes care of it 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

Accessible for beginners

Reliable for tables that like to follow RAW

You can use it to:

Check whether a character can clear an obstacle before they commit

Plan interesting movement options during encounter prep

Resolve player stunts without bogging things down

Just enter the stats and read the output. It’s meant to fade into the background, not become the focus of the session.

Future Plans

Right now, 5e Jump Calculator is kept lean on purpose: it handles jump distances cleanly.

In the future, I might:

Add more 5e movement-related tools

Support more edge cases and optional rules

Improve the layout and usability based on feedback

If you spot something off, or if you have a suggestion, you’re welcome to contact me. This site is meant to make your games smoother, and your input directly guides future changes.

Thanks for checking out 5e Jump Calculator. Here’s hoping it keeps your sessions moving and your jumps heroic.