You’ve found 5e Jump Calculator, a tiny online tool designed to tackle a surprisingly fiddly D&D 5e rule: jumping.

If you’ve ever been the DM who halted the action to dig through the PHB, debated if that chasm is actually jumpable, or tried to reconstruct from memory how Strength and movement interact, this site is for you.

So, What Does This Site Do?

5e Jump Calculator is a simple online helper 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

Maximum reach during a jump

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.

Why This Calculator Exists

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

As a DM who also plays regularly, I often hit the same situation:

Someone wants to clear a gap, leap to a ledge, or vault over an obstacle, 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 took the obvious next step: I made a dedicated tool.

5e Jump Calculator was originally just a quick private tool, 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 It Works (In Plain Language)

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

Uses your Strength score to determine base jump distances

Accounts for running vs standing jumps

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 takes care of 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

Accessible for beginners

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

Type in the numbers and let the calculator handle the rest. It’s meant to get out of the way, not steal the spotlight.

What’s Next?

Right now, 5e Jump Calculator is kept lean on purpose: it calculates jumps accurately and clearly.

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

Thanks for stopping by. I hope it saves you a few minutes—and a few arguments—every session.