Economics Toolkit

Practical economics, minus the spreadsheet setup

Turn economic questions into clear answers.

Explore growth, inflation, purchasing power, and real values with five focused calculators. Every result includes the formula and stays entirely in your browser.

Open the calculators View source
  • 5 focused tools
  • 0 data collected
  • 100% open source
Compound projection Calculated locally
Projected value Rp 14.693.281 +46.9% over 5 years
Year 0Year 5

The toolkit

Choose a calculator

01

Percentage change

Measure how much a value rose or fell.

Formula (new − original) ÷ original × 100

02

CAGR

Find a smoothed annual growth rate.

Formula (ending ÷ beginning)1 ÷ years − 1

03

Inflation & purchasing power

Compare money across time.

Formula amount × (1 + inflation rate)years

04

Real vs. nominal value

Remove or restore the effect of prices.

Real value nominal value × base index ÷ current index

05

Compound growth projection

Project a growing balance with optional recurring additions.

Each period previous balance × (1 + growth rate) + addition

Designed for understanding

Useful numbers should be easy to inspect.

Economics Toolkit is a small open-source project by Naufal. It favors readable formulas, sensible validation, and results you can verify rather than black-box calculations.