## How the US Inflation Calculator can help you

US Inflation Calculator will help you measure how the value of the USD has changed over the years.

** See UK CPI and RPI Inflation Calculator here.*

## How to use the US Inflation Calculator

1. Select the date from;

2. Select the date to;

3. Enter an amount;

3. Click on the “Calculate” button to get the results for US Inflation.

## US Inflation Calculator Formula

**To revalue a sum of money between two periods:**

**Sum of money ($) times (later date index divided by earlier date index)**

*e.g: $100 x (240.849 [2016]) /238.316 [2015] = $101.062*

**To calculate a percentage change between any two months:**

**(later date index minus earlier date index divided by earlier date index) times 100**

e.g: (240.849 [2016] – 238.316 [2015]) / 238.316 [2015] x 100 = 1.062%