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.

## FAQ

**How do you scale down a 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.

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