Welcome to 5e Jump Calculator, a tiny online tool built to solve one oddly specific D&D 5e problem: jumping.

If you’ve ever been the player who halted the action to dig through the PHB, argued over how far a character can really leap, or tried to reconstruct from memory how Strength and movement interact, this tool was built with you in mind.

What Is 5e Jump Calculator?

5e Jump Calculator is a free web tool that takes the 5e jump rules and does the math for you.

You plug in your character’s stats—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

Other useful jump-related numbers based on the official rules

No page-flipping, no rough estimates—just clear results you can rely on.

The Story Behind the Site

This site was born from real table frustration.

As a DM who also plays regularly, I kept running into the same situation:

Someone wants to clear a gap, leap to a ledge, or vault over an obstacle, the entire table stalls while we check the rules.

The 5e rules for jumping aren’t especially complicated, but they are easy to forget. I found myself reaching for the PHB over and over again, so I did the sensible nerd thing: I wrote a little web app.

5e Jump started as a personal helper, and then I turned it into a site so others could use it in case other tables were running into the same slowdown.

How the Calculator Handles the Rules

This tool follows 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

Considers whether you have a running start

Uses your height for realistic reach calculations

Sticks closely to RAW and avoids house-rule shortcuts

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:

Fast enough to use mid-session

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

Type in the numbers and let the calculator handle the rest. It’s meant to support your game quietly, not steal the spotlight.

Future Plans

Right now, 5e Jump Calculator is focused on doing one thing well: it calculates jumps accurately and clearly.

In the future, I may:

Add more 5e movement-related tools

Support more edge cases and optional rules

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

If you spot something off, or if you want to request a feature, you’re welcome to contact me. This site is for DMs and players like you, and your feedback helps shape what it becomes next.

Thanks for stopping by. May it help your party jump a little farther and your rules debates be a little shorter.