Free · runs on your device
Philtrum to chin ratio
The lower face splits into the philtrum, from the base of the nose to the upper lip, and the chin segment below the lower lip. Drawings often make the chin about twice the philtrum.
This measures your photo. It does not tell you to change either length.
- Cost
- Free
- Time
- Under a minute
- Signup
- None
- Data
- Stays on device
Your photo
Add a photo to measure
Face the camera straight on, hair off the face, even light, no filter.
- 1Add your photoCamera or a file. Either stays on this device.
- 2Mapped in your browser478 landmarks find the zones. The picture is not uploaded.
- 3Your measured resultNumbers from this photo, drawn on the picture.
Add a photo. It stays in this browser.
- On-device, never uploaded
- 478 landmarks
- Free, no signup
In the app
Want a record of philtrum and chin, not a one-off?
Philtrum and chin on this page is a single reading. The app saves a scan and the routine that followed it, so the next photo has a baseline.
- Six saved scores: hydration, texture, tone, acne, pores, and redness
- A morning and evening routine built from the scan
- The same face, week after week, so a change shows up as a trend
Scan with your phone. iPhone opens the App Store. Android opens Google Play.
The science
What philtrum and chin measures, and how this page does it
- 01
One question, answered from this photo
Philtrum and chin uses the face in the frame, not a questionnaire. The philtrum (the groove from the nose to the upper lip) compared with the chin height below the lower lip.
- 02
Landmarks first, then the number
The photo is drawn to a canvas in your browser. A face landmark model marks 478 points so the measurement uses the face, not the background. Nothing is uploaded.
Nose-base, upper-lip, lower-lip, and chin landmarks set the two segments. The page says which segment takes more of that lower-face distance in this photo.
- 03
The result on this page, and the record in the app
The philtrum (the groove from the nose to the upper lip) compared with the chin height below the lower lip.
The AISkincare app keeps a scan: hydration, texture, tone, acne, pores, and redness, then builds a morning and evening routine from those scores. This page answers once and does not store the photo.
- 04
What will throw the number off
This is a cosmetic reading of one photo on your device. Lighting, lens, and angle change the numbers. It is not a diagnosis or a clinical measurement.
Lip filler, a relaxed versus pressed mouth, and facial hair covering the chin change the segments. It is not a surgical plan.
How to read a philtrum and chin result
Nose-base, upper-lip, lower-lip, and chin landmarks set the two segments. The page says which segment takes more of that lower-face distance in this photo.
Use the steps under the tool as the procedure: same light, same distance, same expression, whenever you want a second reading to mean something. The app is where a series of scans can sit next to a routine. This page is the single measurement.
A setup that makes a second photo comparable
Daylight from a window, phone at eye level, an arm's length away, hair off the zones the tool needs, no beauty filter. Tilt in the chin or a camera held low changes several face measurements at once.
If the page warns that the photo looks angled, or that a distance falls outside a usual range, retake before you act on the figure.
One photo is a point. A month is a line.
Philtrum and chin on a Tuesday includes the light in the room. The same check in the same window next month is the comparison that can show a change. Stacking random selfies from different rooms mostly shows the rooms.
Scan the QR code under the tool with the phone you will keep using. An iPhone is sent to the App Store and an Android phone to Google Play, so the history starts in the right store.
What philtrum and chin will not claim
Lip filler, a relaxed versus pressed mouth, and facial hair covering the chin change the segments. It is not a surgical plan.
This is a cosmetic reading of one photo on your device. Lighting, lens, and angle change the numbers. It is not a diagnosis or a clinical measurement.
How to use the result
- Use a photo taken by the rear camera, or by someone else, at arm's length.
- Face the light. Do not use a portrait filter.
- Keep hair off the forehead if you want the outline and thirds to settle.
Where to go from here
If one part of the result stood out, open the tool that asks only that question. Each one states its limit in the same place, and each one links back to a guide when a longer explanation helps.
- Feature profileDescribe outline, eye spacing, tilt, and lip fullness from a photo on your device. AISkincare does not match your face to a celebrity.
- Eye spacingMeasure the gap between your inner eye corners against the width of one eye. The photo stays in the browser. The result is a proportion, not a beauty score.
- Nose widthCompare nostril width with the width of a relaxed mouth from a front photo. Measured in the browser, with no upload and no attractiveness score.
- Brow heightMeasure the gap from the brow line to the upper lids, compared with how open the eyes are. A relaxed forehead gives the useful number.
This is a cosmetic reading of one photo on your device. Lighting, lens, and angle change the numbers. It is not a diagnosis or a clinical measurement.