Cumulative Calculator
Comprehensive calculator for cumulative compound growth, portfolio rate of return (CAGR), and mathematical running series distributions.
Cumulative Compound Wealth Accumulator
| Year | Deposits Added | Yearly Interest | Total Contributed | Cumulative Balance |
|---|
Cumulative Math Formulas
Nominal vs Real Wealth
While compounding grows your balance numerically (nominal value), inflation erodes buying power. Using our real inflation-adjusted metric shows what your future money can actually purchase in today’s goods.
How to Use Cumulative Calculator
- Choose your calculation mode: 'Compound Growth & Savings', 'Cumulative Return & CAGR', or 'Cumulative Series & Math'.
- For Compound Growth: Enter initial principal, regular additions, annual growth rate, compounding frequency, and duration.
- For Cumulative Returns: Input starting and ending values or enter a series of period percentage returns to calculate total compounding return and CAGR.
- For Cumulative Series: Paste a dataset of numbers to get instant running totals, cumulative averages, and Pareto cumulative percentages.
- Inspect real-time interactive charts, summary metrics, and download complete amortization schedules in CSV format.
Key Features & Privacy Guarantee
- 3-in-1 Comprehensive Calculator: Covers wealth compound growth, investment portfolio return rates (CAGR), and mathematical running series.
- Inflation Adjustment Engine: Real vs nominal future value comparison to see true purchasing power over long time horizons.
- Multi-Period Return Sequence: Compound chain returns across volatile years with geometric mean and volatility analytics.
- Interactive SVG Charts: Visual compounding curves and cumulative distributions rendered smoothly in real-time.
- Pareto & Frequency Analysis: Running percentage of totals to quickly identify 80/20 distributions in data series.
- 100% Client-Side & Private: Local in-browser execution ensures all personal wealth and dataset figures remain strictly confidential.
Frequently Asked Questions
What is cumulative growth?
Cumulative growth is the total aggregate increase of an amount or investment over multiple successive time periods, accounting for the compounding of past gains upon each other rather than simple linear growth.
How is cumulative return calculated?
Cumulative return is calculated as: [(Final Value - Initial Value) / Initial Value] * 100. For a series of individual periodic returns r1, r2, ... rn, the cumulative return is: [(1 + r1) * (1 + r2) * ... * (1 + rn) - 1] * 100.
What is the difference between Cumulative Return and CAGR?
Cumulative return measures the total percentage gain or loss over the entire investment lifespan. Compound Annual Growth Rate (CAGR) smooths that total gain into a constant annualized rate of return per year: CAGR = (Final Value / Initial Value)^(1 / Years) - 1.
What is a cumulative frequency or running total?
A running total (or cumulative sum) is the continuous sum of a sequence of numbers updated as each new number is added. Cumulative percentage tracks the proportion of the entire dataset accumulated up to each point, often used in ABC or Pareto (80/20) data analysis.