Alligation Calculator

Calculate mixture ratios using alligation method for pharmaceutical compounding and solution blending.

Enter Alligation Data

Results

Enter alligation data to calculate ratios

Alligation Method

Alligation Rule

Higher Conc - Desired Conc = Parts of Lower

Desired Conc - Lower Conc = Parts of Higher

  • • Used in pharmaceutical compounding
  • • Calculates mixing ratios
  • • Ensures accurate concentrations
  • • Prevents calculation errors

Applications

  • • Drug compounding
  • • Solution preparation
  • • Concentration blending
  • • Quality control
  • • Laboratory work
  • • Manufacturing

Alligation Example

Problem

Mix 50% and 10% solutions to make 25% solution

  • • Higher concentration: 50%
  • • Lower concentration: 10%
  • • Desired concentration: 25%

Solution

  • • Parts of 50%: 25 - 10 = 15
  • • Parts of 10%: 50 - 25 = 25
  • • Total parts: 15 + 25 = 40
  • • Ratio: 15:25 or 3:5