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Japan inflation calculator 2010–2025

Calculate cumulative inflation in Japan between 2010 and 2025 using CPI data for Japan. Get the CPI inflation rate, equivalent amount, and inflation shortfall in JPY. No exchange rates.

Coverage starts in 2000 and runs through 2025.

Quick links
Back to Japan2000–20252015–20252020–2025
Quick example

¥1,000 in 2010 is about ¥1,182 in 2025 (CPI inflation 18.2%).

Buying power

Japan inflation loss (2010–2025)

See how inflation changes purchasing power over time. Compare two years using CPI ratios to estimate the inflation-adjusted equivalent amount, the inflation shortfall, and the cumulative inflation factor.

Inputs
Choose a country, amount, and two years. Results stay in the same currency (no exchange rates).
Nominal amount in JPY. Example: ¥1,000
Earlier year (when you had the money).
Later year (comparison purchasing power).

CPI values vary by source and methodology. This site uses locally stored CPI series and the formula in docs/DATA_MODEL.md. CPI value for 2025 are provisional (World Bank CPI with IMF WEO inflation projection) and may be revised.

Japan range snapshot
2010–2025
Inflation factor
1.182x
CPI end / CPI start
Total inflation
18.2%
Cumulative CPI change
Annualized rate
1.1%
Average per year
Peak YoY
+3.3%
2023 YoY
Back to Japan

Cumulative inflation in Japan (2010–2025)

This is a period-level estimate. Inflation affects categories differently (housing, food, energy, services), so your personal experience may vary. The CPI ratio is a useful high-level way to compare “then vs now” purchasing power in Japan.

Japan inflation rate calculator (CPI)

Use the calculator above to change amounts and compare different ranges. The output includes the equivalent end-year amount, the inflation shortfall, and the cumulative inflation factor.

Key insights for Japan (2010–2025)

  • Total inflation (CPI): 18.2%.
  • Annualized inflation rate: 1.1% per year.

Largest YoY CPI increases (top 3):

  • 2023: +3.3% YoY
  • 2025: +3.3% YoY
  • 2014: +2.8% YoY

Largest YoY CPI decreases (top 3):

  • 2011: -0.3% YoY
  • 2021: -0.3% YoY
  • 2016: -0.1% YoY

CPI-based estimates; year-to-year values can be volatile.

Country contextTap to expand

Country context

Data coverage and source details for the CPI series used on this page.

Currency
JPY (jpy)
CPI coverage
2000–2025
Source
World Bank CPI (2010=100); 2025 provisional from IMF WEO inflation (PCPIPCH)
Downloads
CPI CSV | CPI JSON

CPI value for 2025 is provisional (World Bank CPI with IMF WEO inflation projection) and may be revised.

Presets & related linksTap to expand

Related ranges

2000–20252015–20252020–2025

Popular amounts

¥1,000¥5,000¥10,000
FAQTap to expand

FAQ

Answers to common questions about CPI-based inflation loss estimates.

How much inflation occurred in Japan from 2010 to 2025?

The calculator uses the CPI ratio between the two years to estimate the cumulative change in prices over the period.

What does “equivalent amount” mean on this page?

Equivalent amount estimates what your start-year amount would be in end-year prices (same currency), using CPI ratios.

Is the result guaranteed to match my personal spending?

No. CPI measures average consumer price changes. Individual experiences vary depending on spending patterns and local prices.