Thanks for visiting 5e Jump Calculator, a tiny online tool created to fix a common D&D 5e table slowdown: figuring out jumps.

If you’ve ever been the player who paused combat to dig through the PHB, argued over if that chasm is actually jumpable, or tried to remember exactly how the jumping math works, you’re in the right place.

So, What Does This Site Do?

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

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

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 clean numbers you can rely on.

Why I Built This Tool

This site was born from repeated rules questions at the table.

As a D&D fan who runs and joins games, I kept noticing 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 was tired of re-reading the same paragraph every few sessions, so I did the sensible nerd thing: I built a calculator.

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.

How the Calculator Handles the Rules

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 need to know the exact formula. The calculator does the work and outputs just what you need for play.

Using This Tool During Play

5e Jump is meant to be:

Quick enough for live play

Accessible for beginners

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

Resolve player stunts without bogging things down

Just enter the stats and read the output. It’s meant to get out of the way, not become the focus of the session.

What’s Next?

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

Cover more special abilities and conditions

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

If you notice an issue, or if you have a suggestion, I’d love to hear from you. This site is for DMs and players like you, and your experience at the table is what matters most.

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