You’ve found 5e Jump Calculator, a tiny online tool designed to tackle a surprisingly fiddly D&D 5e rule: figuring out jumps.

If you’ve ever halted the action to flip through the Player’s Handbook, debated if that chasm is actually jumpable, or tried to reconstruct from memory which stats affect jump distance, this site is for you.

What Is 5e Jump Calculator?

5e Jump Calculator is a simple online helper that turns the official 5th Edition jumping rules into instant numbers.

You plug in your character’s stats—such as Strength, height, and whether you have a running start—and the calculator instantly shows your:

Long jump distance

High jump height

Effective reach while jumping

Other useful jump-related numbers based on the official rules

No back-of-the-napkin math, no rules confusion—just straightforward outputs you can rely on.

The Story Behind the Site

This site was the result of real table frustration.

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, we all pause to look up the details.

The 5e rules for jumping aren’t especially complicated, but they are easy to forget. I found myself for the PHB over and over again, so I took the obvious next step: I built a calculator.

5e Jump Calculator was originally just a quick private tool, and then I decided to share 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 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 never have to think about the math directly. The calculator takes care of it and outputs just what you need for play.

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

Trustworthy enough for rules-focused groups

You can use it to:

Check whether a character can clear an obstacle before they commit

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 fade into the background, not become the focus of the session.

What’s Next?

Right now, 5e Jump Calculator is kept lean on purpose: it solves the jump problem and stops there.

In the future, I might:

Expand into other movement calculators

Support more edge cases and optional rules

Polish the interface and add small quality-of-life features

If you notice an issue, or if you have a suggestion, feel free to reach out. This site is meant to make your games smoother, and your feedback helps shape what it becomes next.

Thanks for checking out 5e Jump Calculator. I hope it saves you a few minutes—and a few arguments—every session.