5e Jump Calculator
You’ve found 5e Jump Calculator, a small online tool built to solve one oddly specific D&D 5e problem: figuring out jumps.
If you’ve ever been the player who paused combat to look up the exact jumping rules, argued over whether a running start is enough, or tried to reconstruct from memory how Strength and movement interact, you’re in the right place.
What Is 5e Jump Calculator?
5e Jump Calculator is a no-frills calculator that automates the D&D 5e jump math so you don’t have to.
You enter a few details about your character—including Strength, height, and situational modifiers—and the calculator spits out your:
Long jump distance
Maximum high jump
Maximum reach during a jump
Other useful jump-related numbers based on the official rules
No back-of-the-napkin math, no rules confusion—just clean numbers you can rely on.
Why I Built This Tool
This site was inspired by repeated rules questions at the table.
As a Dungeon Master and player, 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 aren’t especially complicated, but they are easy to forget. I didn’t want to keep re-explaining the same rule, so I did what many nerdy DMs do: I wrote a little web app.
5e Jump Calculator was originally just a quick private tool, and then I decided to share it in case other tables were just as tired of flipping pages mid-session.
How It Works (In Plain Language)
This tool follows the official Dungeons & Dragons 5th Edition jumping rules as written in the PHB.
You’ve found 5e Jump Calculator, a small online tool built to solve one oddly specific D&D 5e problem: figuring out jumps.
If you’ve ever been the player who paused combat to look up the exact jumping rules, argued over whether a running start is enough, or tried to reconstruct from memory how Strength and movement interact, you’re in the right place.
What Is 5e Jump Calculator?
5e Jump Calculator is a no-frills calculator that automates the D&D 5e jump math so you don’t have to.
You enter a few details about your character—including Strength, height, and situational modifiers—and the calculator spits out your:
Long jump distance
Maximum high jump
Maximum reach during a jump
Other useful jump-related numbers based on the official rules
No back-of-the-napkin math, no rules confusion—just clean numbers you can rely on.
Why I Built This Tool
This site was inspired by repeated rules questions at the table.
As a Dungeon Master and player, 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 aren’t especially complicated, but they are easy to forget. I didn’t want to keep re-explaining the same rule, so I did what many nerdy DMs do: I wrote a little web app.
5e Jump Calculator was originally just a quick private tool, and then I decided to share it in case other tables were just as tired of flipping pages mid-session.
How It Works (In Plain Language)
This tool follows the official Dungeons & Dragons 5th Edition jumping rules as written in the PHB.