About the Handiwork Aspect Ratio Calculator
The Aspect Ratio Calculator finds proportional dimensions from any width-to-height ratio. Pick a preset like 16:9, enter your ratio, then use the Width → Height or Height → Width panel to solve for the missing side. Results update live as you type.
How to use the Handiwork Aspect Ratio Calculator
- Choose a preset or enter a custom ratio width and height.
- In Width → Height, enter a target width to calculate the matching height.
- Or in Height → Width, enter a target height to calculate the matching width.
What is an aspect ratio?
An aspect ratio expresses the relationship between width and height, like 16:9 for widescreen video or 1:1 for a square. Keeping the ratio constant when resizing ensures content scales cleanly without distortion.
Common ratios and where they’re used
16:9 is standard for video and most screens, 4:3 is used by older displays and many presentations, 1:1 suits social media squares, and 9:16 fits vertical stories and reels. Pair this calculator with the Image Resizer when you need to export at exact pixel dimensions.
Frequently asked questions
How do I keep an image from looking stretched?
Resize using the same aspect ratio. Enter one new dimension and let the calculator compute the matching value for the other.
How is a ratio like 16:9 found?
The calculator divides the width and height by their greatest common divisor to reduce them to the simplest whole-number ratio.
Are results rounded?
Calculated dimensions are rounded to three decimal places for readability. For pixel-perfect exports, round to whole numbers before resizing an image.