You’ve found 5e Jump Calculator, a small online tool built to solve one oddly specific D&D 5e problem: jumping.

If you’ve ever been the DM who stopped a session to look up the rules, argued over how far a character can really leap, or tried to reconstruct from memory which stats affect jump distance, this tool was built with you in mind.

What Is 5e Jump Calculator?

5e Jump Calculator is a no-frills calculator 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 instantly shows your:

Maximum long jump distance

Maximum high jump

Effective reach while jumping

Key distances based on the 5e rules as written

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

Why I Built This Tool

This site was the result of repeated rules questions at the table.

As a D&D fan who runs and joins games, I kept noticing the same situation:

A character wants to do something cool and cinematic with a jump, we all pause to look up the details.

The 5e rules for jumping are straightforward, just not when you’re under time pressure. I was tired of re-reading the same paragraph every few sessions, so I did what many nerdy DMs do: I built a calculator.

5e Jump Calculator began as something I used just for my home games, and then I turned it into a site so others could use it in case other tables were running into the same slowdown.

How It Works (In Plain Language)

This tool implements the official Dungeons & Dragons 5th Edition jumping rules as written in the PHB. In simple terms, it:

Uses your Strength score to determine base jump distances

Considers whether you have a running start

Factors in your height and reach where appropriate

Sticks closely to RAW and avoids house-rule shortcuts

You don’t need to know the exact formula. The calculator handles it and gives you the final, table-ready numbers.

How to Use It at Your Table

5e Jump Calculator is meant to be:

Fast enough to use mid-session

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

Design encounters with realistic jumps in mind

Keep cinematic moments moving without arguing over distances

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.

Where This Might Go

Right now, 5e Jump Calculator is kept lean on purpose: it handles jump distances cleanly.

In the future, I may:

Add more 5e movement-related tools

Support more edge cases and optional rules

Improve the layout and usability based on feedback

If you notice an issue, or if you have an idea for improvement, I’d love to hear from you. This site is built to help real tables, 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.