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Oppervlakte Rekenmachine (Alle Vormen) — Gratis online tool

Oppervlakte van rechthoek, cirkel, driehoek, veelhoek + meer

Bereken oppervlakte van rechthoek, vierkant, cirkel, driehoek, parallellogram, trapezium, veelhoek, ellips. Met visuele diagrammen + formules.

Area
Perimeter
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Meer weten

Free area calculator — 8 shapes

Calculate area of any common 2D shape: rectangle, square, circle, triangle, trapezoid, parallelogram, ellipse, regular polygon. Shows formula + perimeter where applicable.

How to use this tool

  1. 1

    Pick a shape

    Rectangle, circle, triangle, trapezoid, parallelogram, ellipse, regular polygon.

  2. 2

    Enter dimensions

    Fill in the shape-specific inputs. Formula shown for reference.

  3. 3

    Get area + perimeter

    Both calculated instantly. Supports any unit.

Frequently Asked Questions

Triangle with 3 sides (no height)?
Uses Heron's formula: s = (a+b+c)/2, Area = √(s(s-a)(s-b)(s-c)).
Units?
Use any consistent unit. Output will be in square units of whatever you entered (m², ft², cm²).

Belangrijkste punten

  • Area Rekenmachine (All Shapes) is a free, browser-based calculator tool — area of rectangle, circle, triangle, polygon + more.
  • Nee signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Area Rekenmachine (All Shapes)

  1. Open the tool: Launch Area Rekenmachine (All Shapes) on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Area Rekenmachine (All Shapes) — Quick Facts

Prijs
Gratis — geen limieten, geen watermerk, geen paywall
Privacy
100% in de browser — geen data verlaat je apparaat
Platform
Elke moderne browser — desktop, tablet of mobiel
Categorie
Rekenmachine Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FunctieDetails
ToolArea Rekenmachine (All Shapes)
CategorieRekenmachine
Aanmelden vereistNee
Bestand uploadenGeen — verwerkt in browser
Mobiel ondersteundVolledig responsive
KostenVoor altijd gratis

Why Use Area Rekenmachine (All Shapes)?

You should try Area Rekenmachine (All Shapes) for a quick, private way to area of rectangle, circle, triangle, polygon + more. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. Deze tool draait volledig in je browser. Je gegevens worden nooit naar een server geüpload.