Enter the ratio of the new value to the initial value and the original value into the calculator to scale down to a new number.
Scaling Down Formula
The following formula is used to calculate a scaled down value for a recipe or other problem.
FV = IV * R
- Where FV is your final value or your scaled down value
- IV is your initial value
- R is your ratio of the initial value to final value. For example a ratio of 1:2 = 1/2, meaning that for every 1 initial value, there are 2 final values. So an initial value of 2 scaled down by 1:2 means the final value should be 1. (2*1/2=1)
Scaling Down Definition
A scaling down is the process of reducing a certain value by a scale ratio in order to calculate an equivalent smaller number typically for use in recipes.
Scaling Down Example
How to scale down?
- First, determine the original value.
For example lets say you are make 5 pounds of soup, and the initial value of noodles needed was 4 cups.
- Next, determine the scaled down ratio.
Now let’s say instead you want to only make 1 pound of soup. That would mean your scale down ratio is 1:5.
- Finally, calculate the new value.
Calculate the new amount of noodles required using the formula above. So, 4 * 1/5 = .80 cups of noodles in the scaled down recipe.
Scaling down the ingredients of a recipe involves multiplying the initial ingredient values by the scale ratio. For example, if you want to make 1/5 of the amount of food, you must multiply the ingredient values by 1/5.