You’ve found 5e Jump Calculator, a tiny online tool created to fix a common D&D 5e table slowdown: working out jump distances.

If you’ve ever been the player who stopped a session to flip through the Player’s Handbook, argued over if that chasm is actually jumpable, or tried to reconstruct from memory exactly how the jumping math works, you’re in the right place.

What Is 5e Jump Calculator?

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 immediately calculates your:

Maximum long jump distance

High jump height

Effective reach while jumping

Other useful jump-related numbers based on the official rules

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

Why I Built This Tool

This site was born from actual game-night problems.

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

A character wants to do something cool and cinematic with a jump, everyone stops to argue about the math.

The 5e rules for jumping aren’t especially complicated, but they are easy to forget. I found myself reaching for the PHB over and over again, so I did what many nerdy DMs do: I wrote a little web app.

5e Jump Calculator started as a personal helper, and then I turned it into a site so others could use it in case other tables were running into the same slowdown.

Under the Hood (Without the Jargon)

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

Uses your Strength score to determine base jump distances

Considers whether you have a running start

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 calculator handles it and gives you the final, table-ready numbers.

How to Use It at Your Table

5e Jump Calculator is meant to be:

Simple enough to use during combat

Clear enough for new players

Reliable for tables that like to follow RAW

You can use it to:

Check whether a character can clear an obstacle before they commit

Design encounters with realistic jumps in mind

Resolve player stunts without bogging things down

Type in the numbers and let the calculator handle the rest. It’s meant to get out of the way, not steal the spotlight.

Future Plans

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

In the future, I may:

Expand into other movement calculators

Cover more special abilities and conditions

Improve the layout and usability based on feedback

If you notice an issue, or if you have a suggestion, feel free to reach out. This site is built to help real tables, and your input directly guides future changes.

Thanks for stopping by. May it help your party jump a little farther and your rules debates be a little shorter.