What your FD matures to.

Fixed deposits lock money for a set term in exchange for a fixed contracted rate. The maturity amount depends on principal, rate, term, and compounding frequency. Quarterly compounding is standard; annual elsewhere. This calculator handles both.

10,000 at 7% for 5 years with quarterly compounding matures to 14,148. The same at annual compounding gives 14,026 - a small but real difference. More frequent compounding always produces higher returns; over long terms the gap widens noticeably.

Fixed deposits are low-risk. The rate is fixed at origination so inflation risk is real - a 7% FD during 5% inflation has just 2% real return. Compare the rate to long-term government bond yields (similar risk) rather than savings account rates (shorter term, lower risk).

A worked example

Try the defaults: principal of 10,000, annual rate of 7%, term of 5, compounding frequency of 4. The tool returns 14,147.78. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.

What moves the number most

The result responds to Principal, Annual Rate, Term, and Compounding Frequency. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.

The formula behind this

Standard compound interest formula: Maturity = Principal × (1 + rate/frequency)^(frequency × years). Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.

Why investors run this

Most people's intuition for compounding is wrong — not because the math is hard, but because linear thinking doesn't account for curves. Running numbers through a calculator like this one is the cheapest way to recalibrate that intuition before making an irreversible decision about contribution rate, asset mix, or retirement age.

What this doesn't capture

Steady-rate math ignores real-world volatility. Actual returns are lumpy; sequence-of-returns risk matters most in drawdown; fees and taxes drag on compound growth; and behaviour changes in drawdowns can reduce outcomes below the projection. Treat the number as one scenario, not a forecast.