Size Tools

Use our calculators, converters and visual tools to find, compare and understand everyday sizes.

Enter your own measurements, calculate exact dimensions and see how different sizes relate to each other. All tools work directly in your browser and are free to use.

Available now

Interactive Size Tools

Screens and displays Screen Size Calculator Calculate screen width, height and area from the diagonal size and aspect ratio. Add a second screen to compare both displays visually and to scale.
  • TVs, monitors and displays
  • Inches and centimeters
  • Visual size comparison
Open Screen Size Calculator → Images and printing Print Size Calculator Convert image dimensions and PPI into a physical print size, or calculate the pixels required for a particular print format.
  • Pixels to inches and centimeters
  • Print size to required pixels
  • PPI and print-quality guidance
Open Print Size Calculator → Clothing and fit Clothing Size Finder Enter your height and weight to estimate your clothing size. Add optional body measurements for a more personalized result.
  • Women’s and men’s sizes
  • XS–4XL with EU, UK and US equivalents
  • Optional bust, chest, waist and hip measurements
Find Your Clothing Size → Paper and pixels Paper Sizes in Pixels Select a paper format and resolution to find the pixel dimensions needed for digital design and printing.
  • A-series and North American formats
  • Multiple PPI resolutions
  • Pixel and physical dimensions
Calculate Paper Size in Pixels →
More than a dimension table

Enter, Calculate, Compare and Understand

A-Size tools are designed to help with real decisions. Start with your own dimensions, receive a useful result and use visual comparisons or familiar formats to understand what the numbers mean.

  1. 1EnterYour measurements
  2. 2CalculateYour result
  3. 3CompareAlternative sizes
  4. 4UnderstandThe real difference
Converters and references

More Size Guides

Use these guides to compare international sizing systems and find dimensions for commonly used physical formats.

Clothing Clothing Size Converter Compare US, UK, EU and international clothing sizes from XS to larger sizes. Convert clothing sizes → Shoes Shoe Size Converter Compare men’s and women’s sizes across European, UK and US sizing systems. Convert shoe sizes → Beds and mattresses Bed Size Comparison Compare Twin, Double, Queen and King mattress dimensions across different countries. Compare bed sizes → Paper and print Paper Size Reference Explore A-series, B-series, Letter, Legal and other paper formats in multiple units. Browse paper sizes →
Start with paper or start with an image

Which Print Tool Should I Use?

I know the paper size Select A4, A3, Letter or another format and calculate its pixels → I know the image dimensions Enter image pixels and PPI to calculate the possible print size →

About Our Size Tools

A-Size combines interactive calculators with practical reference guides. Our goal is to make dimensions easier to calculate, convert and compare across different measurement and sizing systems.