Reality Index

The headline inflation rate

What inflation has really been for the past 55 years.

The Reality Index headline inflation rate: a weighted average of what families actually paid for the goods and services that make up household life, compared directly to the official Consumer Price Index using identical weights but real retail prices.

The headline finding. A basket of goods and services that cost $100 in 1980 costs $515 per the Reality Index in 2025, versus $391 per the official CPI. The Reality Index ran 32.0% faster than CPI over 45 years.

Two inflation crises. Extending the data back to 1970 captures the previous inflation crisis (peak: 1979, Reality Index +16.2% year-over-year; CPI +11.3%) alongside the current one (peak so far: 2022, Reality Index +13.0%; CPI +8.0%). The two episodes look comparable in scale by Reality Index measure; the 1970s look slightly worse by CPI measure. Over the full 55-year window, Reality Index ran 54.4% faster than CPI.

Apples to apples, not weights to weights. Reality Index uses the exact same household-spending weights that BLS uses for CPI (the Consumer Expenditure Survey, December 2024). The only difference between our index and theirs is the prices feeding the buckets. Where independent retail and consumer data exists — Kaiser Family Foundation for family health insurance premiums, NCES for college tuition, FHFA for home prices, AAA for vehicle costs, EIA for gasoline, BLS Average Price Data for retail food and electricity — we use it. Where it doesn't exist (dining out, communications, recreation), we fall back to the BLS CPI subindexes. The methodological principle: independent data wherever it exists, BLS subindex chaining only where it doesn't.

Reality Index 1980 → 2025
5.16×
$100 in 1980 → $515 today
Official CPI 1980 → 2025
3.91×
$100 in 1980 → $391 today
Reality Index ran
32.0%
faster than CPI over 45 years
Biggest single-year gap
2022
RI 13.5% vs CPI 8.0% (5.5 pp gap)
Cumulative inflation: Reality Index vs CPI, 1970 → 2025
Both indexes anchored to 1980 = 100 · same BLS CES weights, different price methodology
Reality Index (real retail prices, CES weights) CPI All Items (BLS official)

Reading the chart. The 1970s show the previous American inflation crisis. Reality Index and CPI tracked together through the late 1970s, with the Reality Index pulling slightly ahead during the 1978-1979 peak. Through the 1980s and 1990s, the two lines tracked closely, sometimes with Reality Index running below CPI. The systematic divergence begins around 2000 as housing services and health care costs grow faster than CPI captures. The post-2020 period shows the largest sustained gap in the series: a five-year stretch of Reality Index running 1-5 percentage points above CPI year-over-year. The 1980-2025 cumulative effect: 32% more inflation per Reality Index than per the official CPI. The 1970-2025 cumulative effect: 54.4% more.

Pre-1980 methodology disclosure. Independent retail dollar data for individual food items begins in 1980 with BLS's Average Price Data series. For 1970-1979, the Reality Index is constructed from BLS subindex chaining — the same methodology BLS uses to construct CPI itself. The methodological differentiation between Reality Index and CPI begins meaningfully in 1980 when APU retail dollar data starts. We include the 1970s for historical context, but the 1970s portion of the line is methodologically less differentiated from CPI than the 1980+ portion. The KFF substitution for health care premium (vs. BLS medical) begins in 1999. The FHFA home price substitution begins in 1975; for 1970-1974, FHFA is chained backward via the BLS rent subindex.

Where the gap came from, year by year

Below are the years with the largest single-year inflation gap between Reality Index and CPI. Each shows the year-over-year rate per Reality Index, the year-over-year rate per official CPI, and the gap in percentage points.

The bucket weights

These are the weights, sourced directly from BLS Consumer Expenditure Survey Relative Importance (December 2024), that determine how each category contributes to the Reality Index headline rate. They sum to 100%. These are the same weights BLS uses to compute CPI All Items.

Methodology disclosures

This is the most ambitious composite in the Reality Index project. Several methodology choices are worth flagging honestly so they can be examined and critiqued. The sensitivity analysis page shows what the headline rate looks like under five different defensible weighting methodologies — the gap exists under every one, ranging from 29% to 61%.

A standing commitment. Reality Index is built to be as accurate as possible, not as accurate as it is today. If we identify a more rigorous data source, a methodology improvement, or a measurement error — whether through our own continued research, reviewer feedback, or critique from readers — we will publish the update, announce the change in /news, and revise the affected pages with a timestamped methodology note. The goal is to be the most honest reference number for what inflation has actually cost American families, which requires being willing to revise the methodology when revision is warranted.