How it works
How Fixed-Term Deposit calculadora solves the problem
Think of Fixed-Term Deposit calculadora as the back-of-the-envelope version of the calculation, only the envelope is a web page and the arithmetic is audited by our test suite.
Run the net number, not the headline rate: that is where surprises hide. Put the real cash figures in, even if they are rough — then run the sums and the rest of this page explains what the answer means.
Project the maturity value of a UK fixed-rate bond or a Brazilian CDB/LCI, with gross and net (after tax) returns side by side.
Seeing it on real numbers
A working example keeps the formula honest:
Project the maturity value of a UK fixed-rate bond or a Brazilian CDB/LCI, with gross and net (after tax) returns side by side.
When to use this calculadora
Fixed-Term Deposit calculadora is aimed at people arriving with questions like these:
- "Fixed deposit return"
- "CDB calculadora"
- "LCI vs CDB"
- "What is fixed deposit"
- "How to calculate fixed deposit"
- "Fixed deposit formula"
When to reach for something else
Every tool has an edge where it stops being the right answer. Fixed-Term Deposit calculadora is no exception:
- For legally binding tax or medical decisions — cross-check with HMRC, NHS or a qualified professional.
- For very large or very small extremes the rounding error outgrows the useful precision.
- When the underlying rate or threshold has changed since the page was last reviewed — always verify with the primary source.
- When the input you have is already a derived figure (net of something) — feeding it in as "gross" will double-subtract.
Traps to steer around
Every time you run the sums for a new scenario, one of these creeps in — it's worth knowing them ahead of time.
- Entering a monthly figure into an annual field (or vice versa).
- Forgetting a leading zero on decimals (.5 instead of 0.5 breaks some inputs).
- Trusting a single reading when the underlying number naturally fluctuates.
- Comparing two answers that used different assumptions — always re-run both.
- Skipping the formula box. If you don’t understand the method, the answer is just a vibe.
The sources behind the numbers
Where the maths needs an external authority, we cross-check against:
- Bank of England
- FCA
- B3
- Tesouro Nacional
Works well alongside
If this question keeps coming up for you, the same cluster of tools usually comes next:
- Compound Interest calculadora — Project the future value of savings or investments with compounding, regular contributions and inflation-adjusted returns.
- Tesouro SELIC calculadora — Project returns on Brazilian Tesouro SELIC (LFT) with daily marked-to-market yield, custody fee and IR regressive table.
- Tesouro IPCA+ calculadora — Project returns on Tesouro IPCA+ (NTN-B) — real yield plus inflation (IPCA), IR regressive table and reinvestment.
- Savings Goal calculadora — Work out the monthly contribution needed to hit a savings target by a specific date, with or without an opening balance and compound interest.
How we keep this accurate
Our calculadoras run on pure, unit-tested functions — the same logic lives in the browser and in the CI test suite. When tax rates, thresholds or official figures move, the update lands within 24 hours of the announcement. You can read the editorial policy and corrections policy.
Found an out-of-date number on Fixed-Term Deposit calculadora or anywhere else in the Finance toolkit? Send it to the editorial desk and we'll patch it. Or browse the full calculadora directory for the next tool you need.