You’ve found 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 DM who paused combat to dig through the PHB, debated if that chasm is actually jumpable, 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 simple online helper that takes the 5e jump rules and does the math for you.

You plug in your character’s stats—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 clear results you can rely on.

The Story Behind the Site

This site was inspired by repeated rules questions at the table.

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 while we check the rules.

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 the sensible nerd thing: I built a calculator.

5e Jump Calculator began as something I used just for my home games, and then I decided to share it in case other tables were running into the same slowdown.

How the Calculator Handles the Rules

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

Uses your Strength to set how far and how high you can jump

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 have to memorize any of that. 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:

Quick enough for live play

Accessible for beginners

Trustworthy enough for rules-focused groups

You can use it to:

Verify a jump before the roll

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 fade into the background, not slow you down with options.

Future Plans

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

In the future, I plan to:

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 want to request a feature, I’d love to hear from you. This site is for DMs and players like you, and your input directly guides future changes.

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