You’ve found 5e Jump Calculator, a straightforward online tool created to fix a common D&D 5e table slowdown: jumping.

If you’ve ever paused combat to flip through the Player’s Handbook, debated how far a character can really leap, or tried to reconstruct from memory how Strength and movement interact, this site is for you.

What This Tool Is All About

5e Jump Calculator is a no-frills calculator that automates the D&D 5e jump math so you don’t have to.

You enter a few details about your character—including Strength, height, and situational modifiers—and the calculator immediately calculates your:

Maximum long jump distance

High jump height

Maximum reach during a jump

Other useful jump-related numbers based on the official rules

No page-flipping, no rough estimates—just straightforward outputs you can rely on.

Why I Built This Tool

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:

Someone wants to clear a gap, leap to a ledge, or vault over an obstacle, everyone stops to argue about the math.

The 5e rules for jumping are simple on paper but annoying in the moment. I found myself for the PHB over and over again, 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 decided to share it in case other tables were running into the same problem.

How It Works (In Plain Language)

This tool implements 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

Respects the rules as written, without adding homebrew assumptions

You don’t have to memorize any of that. The calculator does the work and outputs just what you need for play.

How to Use It at Your Table

5e Jump Calculator is meant to be:

Quick enough for live play

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

Design encounters with realistic jumps in mind

Keep cinematic moments moving without arguing over distances

Open the site, fill in the fields, and you’re done. It’s meant to get out of the way, not slow you down with options.

Future Plans

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

In the future, I may:

Expand into other movement calculators

Support more edge cases and optional rules

Improve the layout and usability based on feedback

If you find a bug, or if you have a suggestion, you’re welcome to contact me. 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.