US CPI3.4%▲ +0.2DE CPI2.2%▼ -0.4UK CPI2.8%▼ -0.3JP CPI2.7%▼ -0.2FR CPI2.1%▼ -0.3CN CPI0.4%▲ +0.3IN CPI4.9%▼ -0.1EU HICP2.3%▼ -0.4GCI206.8▲ +3.8GFPI151.4▼ -1.6US CPI3.4%▲ +0.2DE CPI2.2%▼ -0.4UK CPI2.8%▼ -0.3JP CPI2.7%▼ -0.2FR CPI2.1%▼ -0.3CN CPI0.4%▲ +0.3IN CPI4.9%▼ -0.1EU HICP2.3%▼ -0.4GCI206.8▲ +3.8GFPI151.4▼ -1.6

CPI methodology, across 8 major economies

Understand the inflation metrics and GDP indicators that define our global data hub. Click here to browse data across all 8 featured countries.

Data SourcesAccess our full data disclosures

What Is CPI?

The Consumer Price Index tracks changes in a representative basket of goods and services purchased by households.

Household basket

Groceries and Housing

Groceries and housing costs often anchor the CPI basket because households encounter them every month.

Weighting

Transport and Healthcare

Transport and healthcare prices can move differently from food or shelter, which is why category weights matter.

Timing

Releases arrive with lag

Official CPI releases can trail the current month and may be revised, so charts should be read as public release histories.

Why Does CPI Matter?

Purchasing power

Inflation changes real income

When prices rise faster than wages, the same income buys less food, housing, transport and services.

Policy

Central banks react to CPI

Rate decisions, credit conditions and market expectations often hinge on whether inflation is cooling or broadening.

Context

GDP and commodities explain the path

GDP helps separate demand pressure from supply shocks; commodity and food indexes show upstream stress.

How Is CPI Measured?

01

Define the basket

Statistical agencies select a representative mix of goods and services based on household spending patterns.

02

Collect prices

Prices are gathered from retailers, service providers and official surveys on a regular publication schedule.

03

Apply weights

Each category receives a weight so essential or high-spend items influence the index appropriately.

04

Publish the change

The index is compared with prior periods, producing monthly, annual and long-window inflation readings.

Country series used across the site

Source identifiers stay visible so each country page can be audited and later connected to server-side live FRED data.

Live-data boundary

FRED API keys and internal source domains should remain server-side. The current client reads a public mock cache shaped to match future source replacement.

CountryCPI latestGDP latestFrequency
United States3.4% / 2026-0329.18T / 2026 Q1Monthly CPI, quarterly GDP where available
Germany2.2% / 2026-034.55T / 2026 Q1Monthly CPI, quarterly GDP where available
United Kingdom2.8% / 2026-033.66T / 2026 Q1Monthly CPI, quarterly GDP where available
Japan2.7% / 2026-03560.4T / 2026 Q1Monthly CPI, quarterly GDP where available
France2.1% / 2026-033.22T / 2026 Q1Monthly CPI, quarterly GDP where available
China0.4% / 2026-0319.89T / 2026 Q1Monthly CPI, quarterly GDP where available
India4.9% / 2026-034.19T / 2026 Q1Monthly CPI, quarterly GDP where available
Euro Area2.3% / 2026-0316.89T / 2026 Q1Monthly CPI, quarterly GDP where available