About Us

TrapezoidCalculator.com began with a simple goal: remove the friction from trapezoid problems—whether you’re solving for area, perimeter, height, or angles—without juggling unit conversions or clunky forms.

So we built a unit-aware calculator that accepts metric and imperial (including mixed inputs like ft/in or m/cm), keeps units consistent across results, and supports multiple workflows: enter any three of (bases, height, area) to get the fourth; compute perimeter using the median; or let the angle helper fill in the fourth interior angle automatically.

What we care about

• Accuracy & clarity. Formulas are explicit (A = (a + b)/2 × h, P = c + d + 2m), and results update instantly as you change units.
• Privacy by default. No account required to calculate. We keep data collection minimal and transparent.
• Speed & accessibility. Mobile-first UI, keyboard-friendly inputs, readable typography, and sensible focus states.
• Inclusivity in definitions. We support common classroom conventions (inclusive vs. exclusive trapezoid) while focusing on base/height relationships that work either way.

What’s next

• Diagonal and median solvers with step-by-step derivations
• Optional diagram overlays and export (PNG/SVG)
• Saved scenarios and shareable links
• More unit presets and rounding controls
• Dark mode and improved screen-reader cues

Say hello

Got feedback, a bug, or a feature idea? We’d love to hear it. The best way to reach us is the contact page. You help us keep the tool sharp and genuinely useful.

Last updated: November 4, 2025