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What will $100 be worth in 2040?

Short answer: at 3% a year, $100 will buy about $66.11 of today's goods in 2040, and what costs $100 now will cost about $151.26. Try your own amount and rate below.

Today's price or amount
Years from now
years
Inflation per yearUS long-run average ≈ 3%; Fed target 2%
%

$100.00 today will cost about

$151.26

in 2040 at 3% a year · $100.00 will buy only $66.11 of today's goods

202620332040
Future costBuying power of today's amount
Buying power left
66.1%
Prices double in
23.4 years
Target year
2040
Price increase
$51.26

In 2040, under different inflation rates

ScenarioRateFuture costBuys today's
Fed's 2% target2%$131.95$75.79
Last 10 years' average3.38%$159.26$62.79
Last 30 years' average2.56%$142.46$70.20
Average since 19133.17%$154.79$64.60
Your assumption3%$151.26$66.11
Cost in 2040$151.26

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Everyday prices in 2040

What today's prices would become in 2040 (14 years from now) under three inflation paths:

TodayFed's 2% target (2%)Last 30 years' average (2.56%)Average since 1913 (3.17%)
$100 of groceries$132$142$155
$1,500 monthly rent$1,979/mo$2,137/mo$2,322/mo
$4 cup of coffee$5.28$5.70$6.19
$35,000 new car$46,182$49,861$54,176
$60,000 salary (same lifestyle)$79,170/yr$85,476/yr$92,874/yr
$250/month phone, internet & streaming$330/mo$356/mo$387/mo
$1,000,000 retirement goal$1,319,500$1,424,600$1,547,900
$3.50 gallon of gas$4.62$4.99$5.42
$12,000 a year of college tuition$15,834/yr$17,095/yr$18,575/yr
$100,000 in savings buys…$75,790 today$70,200 today$64,600 today

At these rates prices double roughly every 35 years, 27 years, 22 years respectively. Projections, not forecasts — historical averages from BLS CPI-U data.

What $100 of today's prices will cost

At the Fed's 2% target, a typical 3%, and the US average since 1913 (3.17% a year, from BLS CPI data):

YearAt 2%At 3%At 3.17%$100 buys (3%)
2030$108.24$112.55$113.30$88.85
2035$119.51$130.48$132.43$76.64
2040$131.95$151.26$154.79$66.11
2045$145.68$175.35$180.93$57.03
2050$160.84$203.28$211.49$49.19

Looking back instead? See what past dollars are worth today. Protect your savings from inflation with an interest-earning plan.

Why prices keep rising

The Federal Reserve aims for 2% inflation a year over time. Actual inflation has swung far from that — from falling prices in the early 1930s to double digits around 1980 and a spike in 2022. Over the long run, US prices have risen about 3.17% a year, which doubles prices roughly every 22 years. Money sitting in cash loses that much buying power every year; savings that earn more than inflation keep up.

Assumptions

  • A projection, not a forecast: future inflation is unknown. Historical averages come from the BLS CPI-U (annual averages to the latest month).
  • Inflation is assumed steady every year; real prices of specific things (rent, tuition, health care) can rise faster or slower.

Frequently asked questions

How much will $100 be worth in 2040?+

At 3% inflation, $100 will buy about $66.11 of today's goods in 2040. Something that costs $100 today would cost about $151.26 — or $131.95 at the Fed's 2% target and $154.79 at the US average since 1913 (3.17%).

What will a $50,000 salary need to be in 2040?+

To keep the same buying power at 3% inflation, about $75,630.00 a year.

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Last reviewed October 18, 2026. Calculator version 1.0.0. Sources: US Bureau of Labor Statistics — CPI-U, US city average, all items (CUUR0000SA0). Results are estimates for educational purposes, not financial, tax or lending advice. How we check our numbers. Embed this calculator on your site for free.