Free Inflation Calculator
Convert a dollar amount across years at an assumed inflation rate.
- Free Forever
- No Registration Required
- Instant Results
- Downloadable Reports
- Mobile Friendly
Inputs
Result
Equivalent in 10 years
$1,343.92
same purchasing power
Your result is ready.
Download your free detailed report — inputs, result, formula and explanation included.
Estimates only. Verify with a professional for consequential decisions.
- Always Free
- No Hidden Costs
- No Account Required
- Unlimited Calculations
- Instant Reports
Short answer
A dollar today becomes future dollars = present × (1 + inflation)^years, and past dollars in today's money = past × (1 + inflation)^years.
What is the Inflation Calculator?
An inflation calculator converts dollar amounts across time to compare equivalent purchasing power.
How does the Inflation Calculator work?
Compound the amount forward by (1 + inflation)^years, or divide by the same factor to move backward.
Formula
Variables
iAnnual inflation ratetYears
Explanation
Inflation compounds — 3% for 10 years is not 30%, it is ~34%.
Examples
Example 1: $1,000 for 10 years at 3%
$1,000 today = $1,343.92 in 10 years; a $1,000 bill in 10 years buys today what $744.09 buys now.
Applications
- Retirement target adjustments
- Salary negotiation history
- Historical cost comparisons
Advantages
- Immediate, symmetric across time
Limitations
- Assumes one flat rate
- US CPI varies 2–4% annually — use ranges for long horizons
Common mistakes
- Adding inflation rates instead of compounding them
Tips
- The long-run US CPI average is roughly 3.1%; use 3% as a baseline
Related concepts
The Inflation Calculator sits inside the Finance Calculators hub, in the general finance cluster. Broader money tools that span several finance topics. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.
Practical use cases and industry applications
Understanding Inflation
An inflation calculator converts dollar amounts across time to compare equivalent purchasing power. Within finance calculators, inflation belongs to the general finance cluster, where it shares terminology and assumptions with closely related tools.
Learning how inflation is calculated
Inflation compounds — 3% for 10 years is not 30%, it is ~34%. Working through the variables one at a time — i, t — makes the result reproducible by hand and easier to sanity-check.
Using inflation to make a decision
Retirement target adjustments Salary negotiation history Historical cost comparisons Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.
How inflation compares with related measures
money, rate, term, balance all describe adjacent aspects of general finance. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.
Frequently asked questions
Is inflation the same for everyone?
No — personal inflation depends on your consumption basket. Housing, healthcare, and education have outpaced overall CPI in recent decades.
Related calculators
These tools share entities, formulas or user intent with the inflation calculator.
Financial
Free Compound Interest Calculator
Project the future value of savings with compounding and periodic contributions.
Financial
Free Investment Calculator
Project future value of a lump sum plus regular contributions.
Financial
Free Retirement Calculator
Project retirement balance and check the 4% withdrawal rule.
Financial
Free Customer Lifetime Value Calculator
CLV from average order value, purchase frequency and margin.
Financial
Free Future Value Calculator
What a lump sum plus contributions grows to.
Financial
Free NPV (Net Present Value) Calculator
Discounted cash flow value of an investment over 5 years.
Financial
Free Present Value Calculator
What a future sum is worth today.
Financial
Free Real Estate Calculator
Total monthly cost of home ownership (PITI + HOA).
Financial
Free Real Estate Investment Calculator
Cash flow and returns on an income property.