Cross-multiplication online
How many? How much?
Triplet cross-multiplication calculation online. Direct and Inverse Proportions (Indirect Proportions). Easy to use, immediate result.
✅ Tested by user.
Tips
- White cells are for values.
- Blue cells are for inserting units.
- 🧹 Button clear all values and units.
- 💾 Button add green value and unit to the list of saved values.
- List of saved values maybe good for recipe or similar cases.
What is Direct Proportions?
Example 1: I have a recipe for two people (120g). I need a recipe for seven people. When there are more people, more raw materials will be needed. Hence the direct proportions.
What is Inverse Proportions?
Example 2: If I drive at a speed of 70 km/h, I travel the distance in 2 hours. When I increase speed, I decrease time. It is an inverse proportions.
Why the name "How many? How much?"?
It is the most common question that defines the task of a triplet. Therefore, this designation of the web application is the most appropriate.
Languages
Czech, English