Thanks for visiting 5e Jump Calculator, a small online tool designed to tackle a surprisingly fiddly D&D 5e rule: figuring out jumps.

If you’ve ever been the player who halted the action to dig through the PHB, debated if that chasm is actually jumpable, or tried to reconstruct from memory which stats affect jump distance, you’re in the right place.

What This Tool Is All About

5e Jump Calculator is a free web tool that turns the official 5th Edition jumping rules into instant numbers.

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

Maximum reach during a jump

Key distances based on the 5e rules as written

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

Why This Calculator Exists

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

As a DM who also plays regularly, I kept noticing 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 are simple on paper but annoying in the moment. I found myself reaching for the PHB over and over again, so I took the obvious next step: I wrote a little web app.

5e Jump Calculator started as a personal helper, and then I decided to share it in case other tables were just as tired of flipping pages mid-session.

How It Works (In Plain Language)

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 base jump distances

Considers whether you have a running start

Factors in your height and reach where appropriate

Respects the rules as written, without adding homebrew assumptions

You never have to think about the math directly. The calculator handles it and outputs just what you need for play.

Making the Most of the Calculator

5e Jump Calculator is meant to be:

Quick enough for live play

Accessible for beginners

Trustworthy enough for rules-focused groups

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

Type in the numbers and let the calculator handle the rest. It’s meant to get out of the way, not slow you down with options.

Where This Might Go

Right now, 5e Jump Calculator is deliberately simple: 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 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 input directly guides future changes.

Thanks for checking out 5e Jump Calculator. May it help your party jump a little farther and your rules debates be a little shorter.