Welcome to 5e Jump Calculator, a straightforward online tool created to fix a common D&D 5e table slowdown: working out jump distances.

If you’ve ever been the player who paused combat to flip through the Player’s Handbook, argued over if that chasm is actually jumpable, or tried to remember how Strength and movement interact, this tool was built with you in mind.

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—including Strength, height, and situational modifiers—and the calculator immediately calculates your:

Long jump distance

Maximum high jump

Effective reach while jumping

Other useful jump-related numbers based on the official rules

No page-flipping, no rough estimates—just clean numbers 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 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 aren’t especially complicated, but they are easy to forget. I didn’t want to keep re-explaining the same rule, so I took the obvious next step: I wrote a little web app.

5e Jump Calculator was originally just a quick private tool, and then I turned it into a site so others could use 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 to set how far and how high you can jump

Considers whether you have a running start

Uses your height for realistic reach calculations

Sticks closely to RAW and avoids house-rule shortcuts

You don’t have to memorize any of that. The does the work and shows you the result that matters at the table.

Making the Most of the Calculator

5e Jump Calculator is meant to be:

Fast enough to use mid-session

Accessible for beginners

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

Resolve player stunts without bogging things down

Just enter the stats and read the output. It’s meant to fade into the background, not slow you down with options.

Where This Might Go

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

In the future, I might:

Add more 5e movement-related tools

Cover more special abilities and conditions

Improve the layout and usability based on feedback

If you spot something off, 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 using 5e Jump Calculator. I hope it saves you a few minutes—and a few arguments—every session.