Dreisatz-Rechner

Last updated: 2026-08-24

Dreisatz-Rechner — Berechnen Sie faustregel de tres online. Geben Sie a, b, c ein und erhalten Sie sofort das Ergebnis.
Inputs
Result
Enter values and press Calculate

How to use it

  1. [object Object]
  2. [object Object]
  3. [object Object]
  4. [object Object]

Common mistakes

  • ⚠️ Setting up the proportion incorrectly (wrong position of values)
  • ⚠️ Not ensuring the relationship is truly proportional before applying
  • ⚠️ Dividing by zu when zu equals zero, causing calculation Fehler

Worked example

If 7.5kg of materials cost $22.50, find the cost of 12.8kg using direct proportion

The result x ({x}) is the unknown fourth value in the proportion zu:b :: c:x, solving for equivalent ratios in direct proportion problems

Input guide

FieldTypical range
aWert eingeben (a)
bWert eingeben (b)
cWert eingeben (c)