Compound Interest Calculator
Project balance growth with compound returns and optional recurring deposits.
Calculate
Results
From estimate to a live bot scenario
Carry the same logic into Veles: set comparable parameters, preview the order grid, then backtest before you launch.
- Match direction, leverage, grid, Martingale, and TP/SL
- Inspect orders, capital allocation, and average entry
- Stress-test fees, drawdown, and MAE in a backtest
Assumptions & conventions
- Fixed periodic rate; contributions at end of each period.
- periods is an integer from 1 to 600.
- Educational projection — not investment advice; ignores taxes and variable rates.
Frequently asked questions
When are contributions applied?
Contributions are added at the end of each period (ordinary annuity convention).
Period zero is the starting principal only — the first contribution compounds for n−1 periods if you interpret period 1 as the first deposit.
What if the periodic rate is zero?
Future value = principal + contribution × periods with no compounding on the rate.
Profit excludes returned principal and summed contributions.
Can I model weekly DCA into BTC?
Yes — set periods to the number of weeks, periodic rate to your expected weekly return (often 0 for conservative planning), and contribution to your weekly buy size.
This is a savings projection, not a price path simulation.
Why is there a 600-period cap?
It keeps projections bounded for browser performance and discourages extreme exponent overflow.
For very long horizons, split into segments or lower the rate.
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