Thanks for visiting 5e Jump Calculator, a small online tool built to solve one oddly specific D&D 5e problem: figuring out jumps.

If you’ve ever stopped a session to look up the exact jumping 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.

So, What Does This Site Do?

5e Jump Calculator is a free web tool that turns the official 5th Edition jumping rules into instant numbers.

You provide basic character info—including Strength, height, and situational modifiers—and the calculator spits out your:

Maximum long jump distance

Maximum high jump

Effective reach while jumping

Key distances based on the 5e rules as written

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

Why This Calculator Exists

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

As a Dungeon Master and player, 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 are simple on paper but annoying in the moment. I didn’t want to keep re-explaining the same rule, so I did what many nerdy DMs do: I built a calculator.

5e Jump Calculator started as a personal helper, 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 the Calculator Handles the Rules

This tool follows the official Dungeons & Dragons 5th Edition jumping rules found in the Player’s Handbook. In simple terms, it:

Uses your Strength score to base jump distances

Accounts for running vs standing jumps

Factors in your height and reach where appropriate

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

Accessible for beginners

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

Resolve player stunts without bogging things down

Type in the numbers and let the calculator handle the rest. It’s meant to support your game quietly, not become the focus of the session.

What’s Next?

Right now, 5e Jump Calculator is focused on doing one thing well: it solves the jump problem and stops there.

In the future, I plan to:

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 want to request a feature, feel free to reach out. This site is built to help real tables, and your feedback helps shape what it becomes next.

Thanks for using 5e Jump Calculator. Here’s hoping it keeps your sessions moving and your jumps heroic.