Your split, measured to the degree.
Put your phone on the floor, get into your split and hold still. One Eighty reads the angle between your legs, times every stretch only while you're in position, and shows your split opening week by week.
Measure your split now
It's free and runs in your browser. The camera picture is read on this device and never uploaded.
No camera handy?
Step back until your hips and feet are in view
Drag a leg to roughly where your split is
That's a guess.
Set up the cameraLean your phone or laptop against something on the floor, about 2 m (6 ft) away, so it's level.
Get into your splitFace the camera for a middle split, or turn side-on for a front split. Keep your hips and feet in view.
Hold still for a secondThat's your reading. Sink deeper and hold again to beat it.
The clock only runs while you're in position.
Each day's session is a handful of stretches that open your hips, ending with the split itself. Your phone's camera watches the whole time. Slip out of position or start fidgeting and the timer pauses until you settle back in.
A voice tells you what to fix, like “Heel down. Chest up.” And the split at the end is measured, so any session can set a new best.
Try it here: keep still and the clock runs. Scroll or move your mouse and it stops.
Today
Middle split- Butterfly0:45Knees down. Sit tall.
- Horse stance0:40Sit low. Knees over toes.
- Side lunge, left0:30Heel down. Chest up.
- Side lunge, right0:30Heel down. Chest up.
- Straddle fold0:45Fold from the hips. Breathe out.
- Middle splitMeasured0:30Hips square. Breathe out.
Hold still to start the clock
Every new best becomes a 7-second video.
Your Day 1 split fills in blue. Every degree since swells out in pink as the dates flip by, then the gain slams in. You're drawn as a bold figure, so you can share the progress without sharing a photo.
No account. No uploads. Your camera picture never leaves your phone.
Readings are kept on your iPhone as angles and dates, and you can delete them any time. The video is made on your phone too, and only goes where you send it. Read the privacy policy
Questions
How accurate is the reading?
It's an estimate from the camera, so set up the same way each time: camera level on the floor, about 2 m away, hips and feet in view. The app checks that your phone is level before it takes a reading, and uses the middle value of a one-second still hold, so one shaky frame can't throw it off.
Which splits does it measure?
The middle split (also called a straddle or side split) and front splits, left and right.
What does it cost?
Measuring your split is free. The daily sessions come with One Eighty Pro: $39.99 a year with a 7-day free trial, or $4.99 a week.
Do I need an account?
No. There's no sign-up, and your readings stay on your phone.
Is there an Android app?
Not yet. Android and web versions are on the way. Until then, you can measure your split on this page with any phone or laptop that has a camera.
Is it safe?
Warm up first, never force a stretch, and stop if anything hurts. One Eighty helps you time and track your stretching. It isn't medical advice.
one eighty
Measure today. Watch it open.
Free to measure. Android and web are on the way.