A PPI vs. CPI chart overlays two inflation measures from the Bureau of Labor Statistics: the Producer Price Index, which tracks what domestic producers receive for their output, and the Consumer Price Index, which tracks what urban households pay at the register. As of February 2026, the PPI for final demand was running at 3.4 percent year-over-year while the CPI sat at 2.4 percent. That one-point gap is the kind of signal the chart exists to show — wholesale cost pressures that haven’t fully reached consumers yet.
Both indexes are published monthly, and free tools let you overlay them in a few clicks. Reading the chart well is a different matter. The two lines measure overlapping but distinct slices of the economy, and the gap between them means different things depending on what’s driving it.
What Each Line on the Chart Represents
The PPI measures the average change over time in selling prices that domestic producers receive for their output. It’s the seller’s side of the transaction: what a manufacturer, farmer, or service provider actually collects before any retail markup. The BLS publishes over 10,000 individual PPI indexes every month. The headline number most charts use is the final demand index, which captures prices for goods and services sold to end users.
One point that trips up new readers: the PPI isn’t just about physical goods. The program now covers roughly 69 percent of the service sector’s output, including healthcare, finance, and logistics. That matters because a chart showing only goods-based wholesale prices would miss most of the U.S. economy.
The CPI measures the average change in prices urban consumers pay for a fixed market basket of goods and services: food, energy, shelter, transportation, medical care. It’s the household perspective, and it’s the index tied to Social Security cost-of-living adjustments (through the CPI-W) and federal income tax bracket adjustments (through the Chained CPI-U). When the CPI line on a chart rises 3 percent in a year, a worker needs a 3 percent raise just to stay even.
Why the Two Lines Diverge
When the PPI and CPI lines pull apart on a chart, the explanation usually comes down to four structural differences in what each index covers.
Taxes
The CPI includes sales and excise taxes because those are part of the price a consumer actually pays. The PPI excludes excise taxes because they represent revenue collected on behalf of the government, not money the producer keeps. A spike in state or local sales taxes pushes the CPI line up without moving the PPI at all.
Imports and Exports
The PPI only tracks goods and services produced domestically in the 50 states and the District of Columbia. It includes products made for export but ignores imports. The CPI flips that: it includes imported goods households buy but excludes exports. When the dollar weakens, import prices rise and push the CPI higher while the PPI barely moves. When global commodity prices spike, the PPI often jumps first because domestic producers face higher input costs. These trade dynamics are one of the biggest reasons the two lines can move in opposite directions over the same stretch of chart.
Shelter
Shelter costs make up about 35.6 percent of the CPI as of early 2026, the single largest component. The PPI has no comparable residential rent category because landlords renting to individuals aren’t “producers” in the way the index defines them. A rental market boom can drive the CPI steadily higher for months while the PPI barely registers the change. This is the single biggest reason the two indexes can tell different stories about the same economy.
Medical Care
The CPI’s weights only reflect what consumers pay out of pocket for medical care: premiums, copays, deductibles, retail pharmacy. Payments by employers, Medicare Part A, or Medicaid are excluded from the weights. But when the CPI calculates price change, it uses the total reimbursement to providers. If an office visit costs $100 total ($20 copay plus $80 from insurance), the CPI uses the full $100 for price-change calculations even though the consumer only paid $20. The PPI tracks total revenue medical providers receive from all sources. Those different scopes mean medical-related lines on a PPI chart and a CPI chart can move at different speeds even when they’re describing the same healthcare market.
Match Headline to Headline, or Core to Core
Both indexes come in a “headline” version that includes everything and a “core” version that strips out food and energy. Food and energy prices swing with weather, geopolitics, and seasonal production cycles, and they can spike 10 percent one month and reverse the next. Stripping them out reveals the underlying trend.
Core measures have a known limitation: if food or energy prices stay elevated long enough, they start pulling other prices with them. Relying only on core inflation during an extended oil shock can lead you to underestimate the pressure that’s actually building.
For a comparison chart, the clean approach is headline PPI against headline CPI, or core against core. Putting headline PPI against core CPI creates an apples-to-oranges view where energy volatility shows up in one line but not the other, and any gap becomes nearly impossible to interpret.
What the Gap Between the Lines Tells You
The conventional reading is that PPI leads CPI. Producers face higher input costs, raise wholesale prices, and those increases eventually reach consumers at retail. A chart often seems to confirm this pattern, with the PPI line moving up first and the CPI following a few months later.
The research is messier. Several U.S.-focused studies have found that PPI does not reliably predict future CPI movements. International studies on G7 nations, Mexico, and several Asian economies have found stronger evidence of PPI-to-CPI transmission, and some found the relationship runs both ways: consumer demand can push retail prices up first, with those increases flowing backward to producers. Whether PPI leads, lags, or moves in sync with CPI appears to depend on whether inflation is driven by supply-side costs or demand-side spending.
What the chart is genuinely useful for is spotting inflection points. When PPI starts dropping after a sustained climb, that’s a reasonable signal CPI growth may slow in the coming months. The size of the gap also says something about profit margins across the economy. If PPI is rising faster than CPI, businesses are absorbing costs they haven’t passed along, and margins are getting squeezed. If CPI is rising faster than PPI, businesses are expanding their markups.
Year-Over-Year vs. Month-Over-Month
Most PPI vs. CPI charts use year-over-year data: the index level in a given month compared to the same month one year earlier. This smooths out seasonal swings and shows the trend. The BLS publishes it as the “12-month percentage change.”
Month-over-month data shows the change from one month to the next. It’s much noisier and can whipsaw on a single event, like a refinery outage spiking energy prices for a few weeks. Month-over-month views are useful for traders reacting to the latest release but poor for understanding where inflation is actually headed.
Both reports usually drop at 8:30 a.m. Eastern Time. In 2026, the BLS has generally been releasing the CPI a few days before the PPI within each month’s cycle. That creates a brief window where the chart shows one line updated and the other still reflecting last month’s data. It’s a cosmetic artifact, not a real divergence.
Where to Build the Chart
The most popular tool is FRED (Federal Reserve Economic Data), a free database maintained by the Federal Reserve Bank of St. Louis at fred.stlouisfed.org. Search for “Consumer Price Index for All Urban Consumers: All Items in U.S. City Average,” then use the “Add Line” feature in the Edit Graph panel to add “Producer Price Index by Commodity: Final Demand.” The slider at the bottom of the graph lets you zoom in on specific periods.
The BLS publishes its own charts at bls.gov. The 12-month percentage change chart for CPI categories shows how components of consumer inflation have moved over time. The BLS homepage also includes a breakdown of PPI final demand by goods, services, and trade services. These official charts update with each monthly release.
What the Chart Doesn’t Show: The Fed’s Preferred Measure
Neither line on a PPI vs. CPI chart is what the Federal Reserve actually targets. The Fed targets 2 percent annual inflation as measured by the Personal Consumption Expenditures price index, a preference it formalized in January 2012 and has reaffirmed every year since. The PCE adapts more quickly to shifts in consumer spending than the CPI’s fixed basket, and it captures a broader range of expenditures, including some costs paid on behalf of consumers by employers and government programs.
The CPI tends to run slightly higher than the PCE because of differences in weighting. When the CPI reads 2.4 percent, the PCE might be closer to 2.1 percent. Knowing that gap exists prevents the common mistake of looking at a CPI line above 2 percent and assuming the Fed must be falling behind its target. A full inflation picture uses all three: PPI for supply-chain pressure, CPI for household cost of living, and PCE for the measure that drives interest-rate decisions.