You’ve found 5e Jump Calculator, a small online tool designed to tackle a surprisingly fiddly D&D 5e rule: figuring out jumps.

If you’ve ever been the DM who halted the action to dig through the PHB, argued over whether a running start is enough, or tried to remember which stats affect jump distance, you’re in the right place.

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 enter a few details about your character—including Strength, height, and situational modifiers—and the calculator immediately calculates your:

Maximum long jump distance

High jump height

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 This Calculator Exists

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

As a Dungeon Master and player, I often hit the same situation:

A character wants to do something cool and cinematic with a jump, 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 was tired of re-reading the same paragraph every few sessions, so I took the obvious next step: I made a dedicated tool.

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 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 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

Respects the rules as written, without assumptions

You never have to think about the math directly. The calculator does the work and gives you the final, table-ready numbers.

Making the Most of the Calculator

5e Jump Calculator is meant to be:

Quick enough for live play

Accessible for beginners

Accurate enough for rules lawyers

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

Future Plans

Right now, 5e Jump Calculator is focused on doing one thing well: it handles jump distances cleanly.

In the future, I might:

Expand into other movement calculators

Cover more special abilities and conditions

Improve the layout and usability based on feedback

If you spot something off, or if you want to request a feature, you’re welcome to contact me. This site is built to help real tables, and your feedback helps shape what it becomes next.

Thanks for stopping by. Here’s hoping it keeps your sessions moving and your jumps heroic.