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🔺 Triangle
Area, perimeter, and remaining side from three sides or base × height.
The Mixadù Triangle is a free online calculator that area, perimeter, and remaining side from three sides or base × height. It runs entirely in your browser — no sign-up, no uploads, and your inputs never leave your device. Supported units include FT, IN, M, CM, MM.
- Instant results as you type
- Free — no login or sign-up
- Private: runs entirely in your browser
- Part of the 91-tool Engineering Toolkit
Frequently asked questions
Is the Triangle free?
Yes. The Triangle is completely free, with no login or sign-up.
Are my inputs uploaded anywhere?
No. The Triangle runs entirely in your browser; your inputs never leave your device.
Which units does the Triangle support?
It supports FT, IN, M, CM, MM.
Does the Triangle work on mobile?
Yes. It is fully responsive and works on phones and tablets.