Aspect Ratio Calculator

Aspect ratio calculator: get ratio from width and height with common presets and preview for design and video, with one-click copy, offline.

Cách sử dụng

Enter width and height to get the ratio, or switch to Ratio mode to find a missing dimension.

Overview

Aspect Ratio Calculator is a calculator tool that Aspect ratio calculator: get ratio from width and height with common presets and preview for design and video, with one-click copy, offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

Percent and discount
Unit-price and coupon math
Unit and ratio conversion
BMI/BMR and calorie needs
Use it to cross-check “宽高比、比例计算” in reports, docs or APIs to avoid manual conversion errors

How to use

1 Enter numbers and operators
2 See live result and steps
3 Switch units/precision
4 Save frequent formulas

Highlights

Local & private: processing stays in your browser
Live validation with tolerant parsing
One-click copy and export for docs, code or sheets
Batch and offline support under poor network

Notes

Distinguish percent share vs growth
Health calculators are for reference only
Parentheses clarify precedence

FAQ

History?

Last 20 entries saved locally.

Decimals?

Default 2 decimals, adjustable.

How is Aspect Ratio Calculator different?

It runs locally with a focus on speed and privacy, plus tolerant parsing for “宽高比、比例计算” and one-click copy for reuse.

Can I use results in official reports?

Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.

Tip：Tip: Bookmark this page or pin the tab; find related tools via categories and search (convert → calculate → export).

All calculations run locally in your browser; nothing is uploaded.