3R Photo Size
A 3R photo is 3.5 × 5 inches (88.9 × 127 mm, or 8.9 × 12.7 cm). It is a standard R-series print size.
3R measures 88.9 millimetres wide and 127 millimetres tall.
3R Photo Size Dimensions
3R Photo Size in Inches
In inches, a 3R photo is 3.5 × 5 inches, the unit print labs and photo paper packaging use to label this size.
3R Photo Size in Centimeters (cm)
In centimetres, 3R measures 8.9 × 12.7 cm.
3R Photo Size in Millimeters (mm)
3R comes out to 88.9 × 127 mm in millimetres, the figure used when a print size needs to be exact.
3R Photo Size in Pixels
3R needs 1050 × 1500 px at 300 DPI to print sharp. Drop to 252 × 360 px at 72 DPI if it is only going on a screen.
3R Photo Size in Canva
Canva doesn't list 3R as a preset, so choose Custom size and type 1050 × 1500 px to match it at print quality.
3R Photo Size to Scale (Example)
Put 3R next to another size in the comparison tool.
What Is a 3R Photo Used For?
Small keepsake prints: 3R suits a small standing frame, a locket-adjacent keepsake or a photo tucked in a card.
Contact-style sets: Labs print a batch of 3R prints as an affordable way to review a roll or a shoot.
ID and application photos: 3R sheets are cut down for passport and visa photos in many print shops.
3R Photo Size vs Other Photo Sizes
2R is 2.5 × 3.5 in (63.5 × 88.9 mm), smaller than 3R by 1 in wider and 1.5 in taller.
4R is 4 × 6 in (101.6 × 152.4 mm), larger than 3R by 0.5 in wider and 1 in taller.
Frequently Asked Questions
How big is a 3R photo?
3R comes out to 3.5 × 5 inches, or 88.9 × 127 mm.
What size is a 3R photo in cm?
3R works out to 8.9 × 12.7 cm.
Is a 3R photo the same as 3.5×5?
Yes. 3.5 × 5 inches is exactly what 3R means; nothing is lost or added.
Is a 3R photo bigger than 2R?
Yes. A 3R (3.5 × 5 inches) is larger than a 2R (2.5 × 3.5 in) by 1 in wider and 1.5 in taller.
How many pixels is a 3R photo at 300 DPI?
At print quality, 3R is 1050 × 1500 pixels (300 DPI). At 72 DPI it drops to 252 × 360 px.
What is the aspect ratio of a 3R photo?
A 3R photo has a 4:5 aspect ratio (about 1:1.4), compared with 2R's 3:4.
Can I print a 3R photo at home?
Yes, if your printer accepts 3.5 × 5 inches photo paper; it fits a standard Letter/A4-size sheet.
Photo Paper Sizes
✓ Dimensions per Photo print size; unit values derived by formula. Reviewed . Editorial Process →