You’ve found 5e Jump Calculator, a tiny online tool built to solve one oddly specific D&D 5e problem: working out jump distances.

If you’ve ever been the player who stopped a session to look up the exact jumping rules, debated how far a character can really leap, or tried to remember which stats affect jump distance, this tool was built with you in mind.

What This Tool Is All About

5e Jump Calculator is a simple online helper 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 spits out your:

Maximum long jump distance

Maximum high jump

Effective reach while jumping

Key distances based on the 5e rules as written

No guesswork, no mid-session rule dives—just clear results you can rely on.

Why This Calculator Exists

This site was inspired by actual game-night problems.

As a DM who also plays regularly, I kept noticing the same situation:

Someone wants to clear a gap, leap to a ledge, or vault over an obstacle, the entire table stalls while we check the rules.

The 5e rules for jumping are simple on paper but annoying in the moment. I didn’t want to keep re-explaining the same rule, 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 turned it into a site so others could use it in case other tables were running into the same problem.

Under the Hood (Without the Jargon)

This tool uses 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

Accounts for running vs standing jumps

Factors in your height and reach where appropriate

Respects the rules as written, without adding homebrew assumptions

You don’t have to memorize any of that. The calculator takes care of it and shows you the result that matters at the table.

Using This Tool During Play

5e Jump Calculator is meant to be:

Fast enough to use mid-session

Accessible for beginners

Accurate enough for rules lawyers

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

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

Future Plans

Right now, 5e Jump is deliberately simple: it solves the jump problem and stops there.

In the future, I plan to:

Add more 5e movement-related tools

Cover more special abilities and conditions

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

If you find a bug, or if you have an idea for improvement, feel free to reach out. This site is for DMs and players like you, and your input directly guides future changes.

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