Photography Print Sizes Explained (and how to crop)

You took the perfect photo, ordered a print, and bought a frame—only to discover parts of your image will be cropped off. Frustrating, right? Understanding photography print sizes and aspect ratios prevents this common headache and ensures your photos look exactly how you want them when framed.

Understanding Aspect Ratio

Aspect ratio is the proportional relationship between width and height. It's expressed as two numbers (like 3:2 or 4:3) and determines how your photo will fit into different print sizes.

Here's the challenge: cameras capture images in one aspect ratio, but frame sizes often use different aspect ratios. This mismatch means your photo must be cropped or resized to fit.

Common Camera Aspect Ratios

3:2 – Most DSLR and mirrorless cameras (Canon, Nikon, Sony)
4:3 – Micro Four Thirds cameras, many smartphones
16:9 – Some cameras, many smartphones in wide mode
1:1 – Square format (Instagram, medium format film)

Common Print and Frame Aspect Ratios

3:2 – 4×6, 6×9, 8×12, 12×18, 16×24, 20×30
4:3 – 8×10, 11×14, 16×20, 20×24
5:4 – 8×10, 16×20
1:1 – 8×8, 10×10, 12×12, 20×20

Notice the mismatch? A standard 8×10 print (5:4 ratio) doesn't match most camera formats (3:2 or 4:3). This is why cropping is necessary.

Standard Photography Print Sizes

Here are the most common print sizes and their uses:

Small Prints

4×6 (3:2) – Standard photo print, wallet size
5×7 (1.4:1) – Common small frame, desk photos
8×10 (5:4) – Classic portrait size, most popular

Medium Prints

11×14 (1.27:1) – Popular wall display size
12×18 (3:2) – Matches DSLR ratio perfectly
16×20 (5:4) – Large display, common frame size

Large Prints

20×24 (5:6) – Statement piece
20×30 (3:2) – Large landscape format
24×36 (3:2) – Poster size, dramatic displays

Square Prints

8×8, 10×10, 12×12 (1:1) – Modern, Instagram-style displays

How Different Ratios Crop Your Photos

Let's see what happens when you print a 3:2 camera image to different frame sizes:

Original photo: 3:2 ratio (typical DSLR)

Printing to 8×10 (5:4 ratio):

Crop required: Sides will be trimmed or top/bottom extended
Amount lost: Approximately 16% of width will be cropped

Printing to 5×7 (1.4:1 ratio):

Crop required: Top and bottom will be trimmed
Amount lost: Small amount from top/bottom edges

Printing to 12×18 (3:2 ratio):

No crop required: Perfect match!
This is why 12×18 is ideal for DSLR photos

How to Crop Photos for Frames

Step 1: Know Your Frame Size

Before ordering prints, know exactly what size frame you're using. Measure the frame's actual image opening (not the frame outer dimensions).

Step 2: Check Aspect Ratio Match

Divide frame width by height. Compare to your camera's ratio:

Camera 3:2 = 1.5
Frame 8×10 = 1.25
Mismatch = cropping required

Step 3: Crop Before Printing

Use photo editing software to pre-crop your image to match the frame:

On your phone:

iPhone: Photos app → Edit → Crop → choose aspect ratio
Android: Google Photos → Edit → Crop → select ratio
Instagram: Post screen → adjust image before posting

On computer:

Photoshop, Lightroom, or GIMP
Select custom aspect ratio matching your print size
Adjust crop area to include most important parts of image

Step 4: Preview the Crop

Before finalizing, check what will be lost:

Are faces or important subjects included?
Is the composition still strong?
Does horizon line placement still work?

Step 5: Order Print in Exact Size

Order your print in the exact size of your frame opening. Don't order 8×10 and try to fit it in an 8×12 frame—it creates gaps and looks unprofessional.

Using Mats to Avoid Cropping

Can't bear to crop your image? Use a mat to create a standard frame size around a non-standard print.

Example:

You have a 12×18 print (3:2 ratio from your camera)
You want to use a 16×20 frame (easier to find, more affordable)
Solution: Print 12×18, frame in 16×20 with mat

How it works:

Order print in your camera's native ratio (12×18)
Buy larger frame (16×20)
Use mat with 12×18 opening
Mat fills the extra space beautifully

This approach preserves your entire image while using standard, affordable frame sizes. Learn more in our mat board guide.

Common Print Size Mistakes

Mistake 1: Assuming "8×10 Frame" Means 8×10 Print

Frame sizes can be misleading. Check if the measurement refers to:

Frame outer dimensions: The overall frame size
Mat opening: The visible image area (what you actually see)

Always measure the mat opening or check product specifications.

Mistake 2: Not Accounting for Border Overlap

Frames have a small lip (typically 1/4") that overlaps your print to hold it in place. If printing borderless to exact frame size, you'll lose edges.

Solution: Print slightly larger than the opening, or print with white border.

Mistake 3: Printing Smartphone Photos Too Large

Smartphone photos, while high quality, have resolution limits. Printing too large results in pixelation.

Safe smartphone print sizes:

iPhone 12+: Up to 16×20 typically safe
Older smartphones: Keep to 11×14 or smaller
Always preview before ordering large prints

Mistake 4: Not Considering Orientation

Portrait (vertical) and landscape (horizontal) photos need different frame orientations. Don't order prints without checking how they'll be displayed.

Resolution and Print Quality

Print size also depends on your image resolution.

Minimum DPI (dots per inch) for quality prints:

300 DPI: Excellent quality (professional standard)
200 DPI: Good quality (acceptable for most uses)
150 DPI: Fair quality (only for large prints viewed from distance)

How to check:

Find your image dimensions in pixels (e.g., 6000×4000)
Divide by desired print size
Example: 6000 pixels ÷ 20 inches = 300 DPI ✓ (excellent)

Quick reference:

4×6 needs ~1200×1800 pixels minimum
8×10 needs ~2400×3000 pixels minimum
16×20 needs ~4800×6000 pixels minimum

Creating a Print Size Strategy

For Gallery Walls

Mix print sizes for visual interest, but maintain consistency:

Option 1: Uniform ratio, varied sizes

All 3:2 ratio: 8×12, 12×18, 16×24
Creates cohesion through consistent proportions

Option 2: Standard sizes with mats

Different native ratios
Use mats to create uniform frame sizes
See our gallery wall layouts for ideas

For Family Photo Displays

5×7 and 8×10: Classic sizes for desks and shelves
11×14: Feature photo on wall
16×20 or 20×24: Statement piece (wedding photo, family portrait)

For Professional Photography

Match camera ratio: Print in your camera's native aspect ratio
12×18, 16×24, 20×30: Common DSLR-friendly sizes
Square prints (12×12, 16×16): Trendy, modern look

Online Print Services: What to Watch For

When ordering prints online:

Select "Do Not Crop" if available: Gives you control over composition
Review preview carefully: Most services show what will be cropped
Order test print first: For important photos, order one print to verify quality
Choose right paper: Glossy for vibrant colors, matte for portraits
Use reputable services: Mpix, Nations Photo Lab, or Printique for quality

The Bottom Line

Perfect photo printing comes down to:

Understanding aspect ratios
Matching prints to frames (or using mats strategically)
Cropping intentionally before printing
Checking resolution for print size
Previewing before ordering

Don't let aspect ratio mismatches ruin your photos. Plan ahead, crop intentionally, and use our frame designer to preview exactly how your photos will look before ordering.

Start by checking your camera's aspect ratio, measure your frames, and crop your photos to match. Then order prints with confidence—knowing your photos will look exactly as intended.

For more framing guidance, explore our frame size chart and how to measure guide.