Inflation Calculator: What $100 in 2000 Buys Today (And What It Means for Your Money)
$100 in January 2000 has the same purchasing power as $177 in 2024. If your savings account hasn't grown by 77% over that period, your money has gotten poorer — even if the number in your account got larger.
This is the thing about inflation that's easy to miss intellectually: your balance going up doesn't mean your wealth is going up. The relevant question is always whether your money is growing faster than inflation.
What 3% Inflation Actually Does Over Time
3% average annual inflation sounds modest. Compounded over time:
- 10 years: prices rise 34%
- 20 years: prices rise 81%
- 30 years: prices nearly triple (243% of original)
A retirement savings target that felt adequate at 45 needs to be inflation-adjusted by the time you retire at 65. A target that doesn't account for this leaves you significantly short.
Inflation Varies by Category
The headline CPI number averages across categories. Your personal inflation rate depends on what you spend money on:
- Healthcare: has consistently run at 2-3x overall inflation
- College tuition: has outpaced inflation by 4x over the last 20 years
- Groceries: roughly tracks overall inflation
- Electronics/TVs: have deflated significantly
- Energy: volatile, roughly tracks inflation long-term
If healthcare is a significant portion of your budget — which it becomes as you age — your effective inflation rate is higher than the headline number.
Our inflation calculator lets you adjust any dollar amount for any year range using historical CPI data.
[Use the inflation calculator →](https://doesitaddup.com)
Frequently Asked Questions
Why does my savings account balance keep growing but I feel poorer?
Your account balance growing doesn't mean your wealth is growing—it matters whether your money is growing faster than inflation. For example, $100 in January 2000 needed to become $177 by 2024 just to have the same purchasing power. If your savings only grew 50% over that period, you've actually lost 27% of your wealth to inflation, even though your balance increased.
How do I know what my personal inflation rate actually is?
Your personal inflation rate depends on what you actually spend money on, since inflation varies dramatically by category. Healthcare runs at 2-3x overall inflation, college tuition has outpaced it by 4x over 20 years, while electronics have actually deflated. If you spend heavily on healthcare or education, your effective inflation rate is significantly higher than the headline CPI number reported in the news.
What happens to a retirement savings goal if I don't account for inflation?
A retirement target that ignores inflation leaves you significantly short. At just 3% annual inflation, prices nearly triple over 30 years (243% of original). A savings goal that felt adequate at age 45 could require $243,000 in purchasing power by age 75 even if your target was only $100,000—a gap most people don't plan for.
Can I calculate inflation for specific years or categories, not just the headline rate?
Yes—the inflation calculator lets you adjust any dollar amount for any year range using historical CPI data. You can also account for the fact that different spending categories inflate at different rates, so if your budget is weighted toward healthcare or education rather than electronics, you can get a more accurate picture of what inflation actually costs you personally.
This article is for informational purposes only. See our disclaimer.