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How it works

Simple Interest

Interest calculated on the principal only. A = P(1 + rt). Returns grow linearly.

Compound Interest

Interest calculated at selected intervals on both principal + accumulated interest. Formula: A = P(1+r/n)^(nt) where n = compounding periods per year. Select your desired compounding interval (monthly, quarterly, semi-annual, annual, etc.).

Bank Rates by Duration

Each bank publishes FDR rates for different duration tiers (3-6m, 6-12m, 1-2y, 2-3y, 3y+). We use the applicable tier.

Real Data

Rates are sourced from Bangladesh Bank's published data, updated periodically. Results include a detailed yearly/monthly breakdown and growth chart.

Last Updated: September 22, 2026 06:29 PM