You’ve found 5e Jump Calculator, a small online tool created to fix a common D&D 5e table slowdown: figuring out jumps.

If you’ve ever been the player who stopped a session to dig through the PHB, debated whether a running start is enough, or tried to reconstruct from memory how Strength and movement interact, you’re in the right place.

What Is 5e Jump Calculator?

5e Jump Calculator is a free web tool that takes the 5e jump rules and does the math for you.

You provide basic character info—such as Strength, height, and whether you have a running start—and the calculator spits out your:

Maximum long jump distance

High jump height

Maximum reach during a jump

Key distances based on the 5e rules as written

No page-flipping, no rough estimates—just clean numbers you can rely on.

Why This Calculator Exists

This site was inspired by real table frustration.

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

A character wants to do something cool and cinematic with a jump, the entire table stalls while we check the rules.

The 5e rules for jumping aren’t especially complicated, but they are easy to forget. I was tired of re-reading the same paragraph every few sessions, so I did what many nerdy DMs do: I wrote a little web app.

5e Jump Calculator was originally just a quick private tool, and then I decided to share it in case other tables were just as tired of flipping pages mid-session.

Under the Hood (Without the Jargon)

This tool implements the Dungeons & Dragons 5th Edition jumping rules as written in the PHB. In simple terms, it:

Uses your Strength to set how far and how high you can jump

Accounts for running vs standing jumps

Uses your height for realistic reach calculations

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 outputs just what you need for play.

How to Use It at Your Table

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:

Check whether a character can clear an obstacle before they commit

Plan interesting movement options during encounter prep

Keep cinematic moments moving without arguing over distances

Just enter the stats and read the output. It’s meant to support your game quietly, not slow you down with options.

Where This Might Go

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

In the future, I may:

Add more 5e movement-related tools

Cover more special abilities and conditions

Improve the layout and usability based on feedback

If you spot something off, 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. May it help your party jump a little farther and your rules debates be a little shorter.