3:2 Aspect Ratio Calculator – DSLR & 35mm Film

Aspect Ratio Calculator

3:2

Current Aspect Ratio

Quick Select

Custom Input

Width (px)

Height (px)

Ratio Width

Ratio Height

Editing Dimensions — preview reflects exact width × height; ratio is detected from your input.

CSS

aspect-ratio: 16 / 9;

Smart Ratio Simplifier

Enter any resolution to detect its aspect ratio

CSS Code Generator

Production-ready CSS for responsive 3:2 containers:

CSS / HTML

/* Responsive aspect ratio container */
.ratio-box {
  aspect-ratio: 16 / 9;
  width: 100%;
  overflow: hidden;
}

/* With object-fit for images/video */
.ratio-box img,
.ratio-box video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

Live Visual Preview

16:9 1920 × 1080

Preview animates as you calculate

16:9 aspect ratio Landscape 1920 × 1080

For every 16 units of width, the height is 9 units. The longer side is capped at 1920px, so this ratio resolves to 1920 × 1080 — the conventional Full HD size used across most platform presets.

Why 1920 on the long side? It's the standard Full HD reference width/height used by social, video, and screen presets, which keeps Quick Select results consistent with the Platform & Device Presets below.

Platform & Device Presets

Instagram

Post (Square)

1080 × 1080

Instagram

Portrait Post

1080 × 1350

Instagram

Reel / Story

1080 × 1920

TikTok

Vertical Video

1080 × 1920

Snapchat

Story

1080 × 1920

Facebook / X

Link Preview

1200 × 630

Standard Pin

1000 × 1500

Banner

1584 × 396

YouTube

Thumbnail (HD)

1280 × 720

YouTube

1080p Video

1920 × 1080

YouTube / Netflix

4K UHD

3840 × 2160

YouTube

Shorts

1080 × 1920

Twitch

Stream

1920 × 1080

Ultrawide

UWFHD

2560 × 1080

Ultrawide

UWQHD

3440 × 1440

Desktop

Full HD

1920 × 1080

Desktop

2K / QHD

2560 × 1440

Desktop

4K UHD

3840 × 2160

iPad

iPad Retina

2048 × 1536

Ultrawide

UWFHD

2560 × 1080

Samsung

Odyssey Neo G9

5120 × 1440

iPhone 14

Screen

390 × 844

DSLR (24MP)

Full-Frame RAW

6000 × 4000

DSLR

6MP Export

3000 × 2000

4×6" @300DPI

1200 × 800

8×12" @300DPI

2400 × 1600

8×10" @300DPI

2400 × 1920

Micro 4/3

MFT Camera

3000 × 2250

Common 3:2 Resolutions

Resolution	Category	Usage

3:2 Aspect Ratio Calculator — Complete Creator Guide

The 3:2 aspect ratio originates from 35mm film photography and remains the standard sensor format for Canon, Nikon, Sony, and most full-frame and APS-C DSLRs and mirrorless cameras. It produces a natural-feeling image that works beautifully for portraits, landscapes, and editorial photography.

The 3:2 ratio was defined by the 36×24mm frame size of 135 film (35mm), introduced by Leica in the 1920s. It became the definitive format for nearly a century of photojournalism, fashion photography, and documentary work. When digital SLRs arrived, Canon and Nikon maintained the 3:2 sensor ratio for full-frame bodies, ensuring compatibility with the world's vast library of 35mm lenses.

Common Uses

DSLR photography (Canon, Nikon, Sony), 35mm film, mirrorless cameras, print photo sizes (4×6", 6×9"), editorial photography, stock photography.

Supported Platforms

Canon EOS Nikon Z-series Sony Alpha Fujifilm X-series Lightroom exports Capture One

Safe Zone Guide

Safe Zone: For 3:2 prints at 4×6", use 1200×800 px at 300 DPI. For 8×12" prints, use 2400×1600 px at 300 DPI.

Pro Creator Tip

Standard photo print sizes (4×6, 6×9, 12×18 inches) are all 3:2. This means photos straight from a DSLR can be printed without cropping at these sizes — a major advantage over other ratios.

CSS Aspect Ratio

CSS

aspect-ratio: 3 / 2;
width: 100%;
height: auto;

Apply this CSS to any element to lock it to the 3:2 ratio. Supported in Chrome 88+, Firefox 89+, Safari 15+, and Edge 88+.

3:2 vs Other Ratios

4:3

Slightly squarer; common in Micro Four Thirds and compact cameras. Less elongated feeling.

16:9

Much wider; requires significant cropping of 3:2 photos for video use.

1:1

Square; requires cropping both sides of a 3:2 image significantly.

Best 3:2 Resolutions & Use Cases

Resolution	Format	Best For	Copy
3000×2000	6MP	Entry DSLR, web use	Copy
4500×3000	13.5MP	APS-C DSLR	Copy
6000×4000	24MP	Full-frame, enthusiast	Copy
7952×5304	42MP	Sony A7R V, high-res	Copy
8736×5824	50MP	Canon R5, professional	Copy
1200×800	Web Export	Blog, website images	Copy

How to Use the 3:2 Calculator

Set your camera to RAW or JPEG and check sensor crop factor (full-frame = 36×24mm native 3:2)

To find 3:2 output size: divide width by 3 to get unit, multiply by 2 for height

For printing: multiply desired print inches by 300 (for 300 DPI) to get pixel dimensions

Export from Lightroom/Capture One at 3:2 with crop overlay enabled

Coming from a 3:2 DSLR and shooting video? Switch to 16:9 for YouTube or the 9:16 vertical format for short-form content.

Frequently Asked Questions — 3:2

What cameras use 3:2?

Most Canon, Nikon, Sony full-frame and APS-C cameras shoot in 3:2. This includes Canon EOS R5, Nikon Z6 III, Sony A7 series, and Fujifilm X-T5.

What print sizes are 3:2?

3:2 photo prints include 4×6", 6×9", 8×12", 12×18", 16×24", and 20×30". These are standard sizes at print labs worldwide.

How is 3:2 different from 4:3?

3:2 is slightly wider than 4:3. At 3000 height, 3:2 is 4500 wide while 4:3 is 4000 wide — 500 more horizontal pixels. This gives 3:2 photos a slightly more elongated, cinematic feel.

Can I crop 3:2 to 16:9 for YouTube?

Yes. From a 3:2 image (e.g. 6000×4000), crop to 6000×3375 to get 16:9. You'll lose some top and bottom, so compose with extra headroom when shooting video-targeted content.

Why do Fujifilm cameras use 3:2?

Fujifilm X-series cameras use an APS-C sensor that natively outputs 3:2. This traces back to the 35mm film format that Fujifilm's film business defined — they've maintained it as a homage to the original standard.

What DPI should I use for 3:2 prints?

For standard photo lab prints, 300 DPI is the target. A 4×6" print at 300 DPI needs 1200×800 px; a 12×18" print needs 3600×2400 px.

Explore Related Aspect Ratios

What Is an Aspect Ratio? Complete Guide for Creators in 2026

An aspect ratio is the proportional relationship between the width and height of an image, video, or display. It's expressed as two numbers separated by a colon — for example, 16:9 means the width is 16 units and the height is 9 units. The actual pixel dimensions can vary infinitely, but the proportion stays constant.

Why Aspect Ratios Matter for Content Creators

Choosing the wrong aspect ratio is one of the most common mistakes in digital content creation. Upload a 16:9 video to TikTok and it shrinks into a tiny rectangle surrounded by black bars. Post a 3:2 photo to Instagram expecting a natural crop and you'll be surprised by what gets cut. Understanding aspect ratios lets you shoot, edit, and export content that looks exactly right on every platform — and understanding how to convert between them is what separates amateur and professional output.

Platform Aspect Ratio Quick Reference

Platform	Ratio	Optimal Resolution	Use Case
YouTube	16:9	1920×1080 / 3840×2160	Videos & thumbnails
TikTok	9:16	1080×1920	Vertical video
Instagram Reels	9:16	1080×1920	Vertical video
Instagram Post	1:1 / 4:5	1080×1080 / 1080×1350	Feed posts
DSLR Camera	3:2	Varies (6000×4000 typical)	Photography
iPad	4:3	2048×1536 / 2360×1640	Tablets
Ultrawide Monitor	21:9	3440×1440	Gaming & design
Super Ultrawide	32:9	5120×1440	Samsung Odyssey

How to Calculate Aspect Ratio from Pixels

To find the aspect ratio of any resolution, divide both width and height by their Greatest Common Divisor (GCD). For 1920×1080: the GCD is 120. Divide: 1920÷120=16, 1080÷120=9. Result: 16:9. Our Smart Ratio Simplifier above does this calculation instantly for any resolution you enter.

Aspect Ratio in Responsive Web Design

Modern CSS makes it simple to lock elements to a specific aspect ratio using the aspect-ratio property. This ensures videos, images, and UI containers maintain their proportions at all screen widths. Previously developers used the "padding-top percentage hack," but the CSS aspect-ratio property (supported since 2021 in all major browsers) is the clean, modern approach.

Related Tools on FastSaveMedia

Video Cropper — Crop videos to exact aspect ratios for TikTok, Instagram, and YouTube
Social Media Resizer — Resize images to exact platform dimensions instantly
Safe Zone Checker — Preview UI overlaps on TikTok, Reels, and Shorts