Pool Distance Calculator

Instantly calculate realised distances for any pool size — standard or non-standard — so you never have to do the maths poolside again.

DYN / DYNB / DNF
AIDA v17.7
Free
Open Distance Tracker

judgesuite.com/pool-distance


The Problem with Non-Standard Pools

Not every freediving competition takes place in a clean 25 m or 50 m pool. Many venues are 33 m, 20 m, or even odd lengths like 28 m. When an athlete surfaces mid-length in a 33 m pool after completing several laps, calculating the exact realised distance on the spot is surprisingly tricky — especially under the pressure of Surface Protocol, where every second counts.

The Pool Distance Calculator solves this instantly. Set the pool length once — whether it's 25, 33, 50, or any custom size — and the tool does the rest. Enter the number of completed laps and the metres covered on the final length, and you get the precise realised distance with zero mental arithmetic.

How It Works

  1. Set the pool size — choose a standard length or type a custom one like 33 m.
  2. Enter laps & final metres — the tool multiplies laps by pool length and adds the remaining metres.
  3. Get the result — the realised distance appears instantly, along with any Under AP penalty if the athlete fell short of the announcement.

No more pulling out a calculator poolside, no more second-guessing whether 4 laps in a 33 m pool plus 12 extra metres is 144 m or 145 m. The answer is right there.

Built for the Pool Deck

We designed the interface specifically for competition environments. Large tap targets, high-contrast colours, and a minimal layout mean you can use it on a phone in direct sunlight, from a tablet at the timing desk, or on a laptop in the warm-up area. It works offline too — if the venue Wi-Fi drops, your data stays safe.

Whether you're an experienced AIDA judge or running your first pool event, the Pool Distance Calculator removes the mental maths so you can focus on the athlete and the Surface Protocol window.

Features at a Glance

Handles any pool length — 25 m, 33 m, 50 m, or custom sizes

Calculates exact distance from laps + metres on the final length

No more mental maths after surface protocol on odd-sized pools

Supports DYN, DYNB, and DNF pool disciplines

Automatic Under AP penalty calculation

Half-metre resolution — no rounding debates

Simple, distraction-free interface for pool-deck use

Works offline on phones, tablets, and laptops

No sign-up, no installation — just open and go

AIDA v17.7 compliant distance scoring

Try the Pool Distance Calculator

Set your pool length, enter laps, and get instant results — no sign-up required.

Open Distance Tracker