Thanks for visiting 5e Jump Calculator, a straightforward online tool built to solve one oddly specific D&D 5e problem: figuring out jumps.

If you’ve ever been the player who stopped a session to look up the exact jumping rules, argued over whether a running start is enough, or tried to reconstruct from memory which stats affect jump distance, this tool was built with you in mind.

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—like Strength score, height, and a few relevant conditions—and the calculator immediately calculates your:

Maximum long jump distance

Maximum high jump

Maximum reach during a jump

Key distances based on the 5e rules as written

No guesswork, no dives—just clean numbers 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 kept noticing the same situation:

A player asks, "Can I make that jump?" and the entire table stalls while we check the rules.

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 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 cleaned it up and put it online in case other tables were running into the same problem.

Under the Hood (Without the Jargon)

This tool implements the official Dungeons & Dragons 5th Edition jumping rules found in the Player’s Handbook. In simple terms, it:

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

Accounts for running vs standing jumps

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 does the work and shows you the result that matters at the table.

Using This Tool During Play

5e Jump Calculator is meant to be:

Simple enough to use during combat

Understandable even if you’re new to 5e

Reliable for tables that like to follow RAW

You can use it to:

Verify a jump before the roll

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 fade into the background, not slow you down with options.

What’s Next?

Right now, 5e Jump Calculator is deliberately simple: it calculates jumps accurately and clearly.

In the future, I plan to:

Expand into other movement calculators

Cover more special abilities and conditions

Improve the layout and usability based on feedback

If you find a bug, or if you want to request a feature, I’d love to hear from you. This site is meant to make your games smoother, and your experience at the table is what matters most.

Thanks for stopping by. I hope it saves you a few minutes—and a few arguments—every session.