Proportion Calculator

Proportion Calculator helps you solve any missing value in a proportion, scale recipes for more or fewer servings, and split a total into ratio parts. You get clear step-by-step working, not just a final number. Works fully offline. No ads. No account required.

SOLVE: Find A, B, C, or D

• Direct proportion (A/B = C/D) and inverse/product forms

• Simple 3-step wizard. Enter one number at a time

• Full answer with ratio bars, kitchen fractions, and equivalent ratios

• Cross-multiply check so you can trust the result

• Quick examples for recipes, screens, maps, and more

SCALE: Recipe and batch scaling

• Set original and target servings (slider 1 to 24)

• See the multiplier instantly (for example x 2.25)

• Add ingredients. Every amount updates automatically

• Kitchen-friendly measures in grams and fractions

MIX: Split totals by ratio

• Enter any total and unit (ml, g, cups, or custom)

• Custom ratio parts with donut chart and percentages

• Add or remove parts easily

• Share or save your mix

STUDIO TOOLS (More tab)

• Ratio studio: simplify ratios, check equality, golden ratio

• Aspect and map scale for screens, photos, and blueprints

• History: every calculation saved on your device

• Tap any history entry to open and edit it again

SETTINGS AND PERSONALIZATION

• Soft light, Night, or Match system theme

• 12 accent colors

• 10 languages: English, Hindi, Urdu, Spanish, Arabic, Portuguese, French, German, Chinese, Bengali

• Decimal precision from 0 to 8 places

• Haptic feedback

• Export history, share app, rate on Play Store

WHY PROPORTION CALCULATOR?

Whether you are adjusting a recipe, checking a mix ratio, resizing a screen, or doing homework, you get the answer and the working.

• 100% offline calculator. No internet needed for math

• No ads, no subscriptions, no sign-up

• History stays on your device

• Clean, modern interface built for daily use

Download Proportion Calculator and solve proportions the clear way.