CD APY Calculator
Annual percentage yield of a certificate of deposit from its nominal rate and compounding — plus maturity value.
Formula
US banks must advertise APY (Truth in Savings, Reg DD) so daily and quarterly compounders are comparable. Daily compounding adds ~6 bp at 5% rates versus annual — small per CD, meaningful across a ladder.
Not financial advice — for informational and analytical use only. Verify all figures with a qualified professional before acting on them.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Need cd apy calculator results fast? Analysts, founders, traders and finance professionals use the CD APY Calculator to skip the spreadsheet and get a defensible answer in one step — free, private and instant.
About CD APY Calculator
Annual percentage yield of a certificate of deposit from its nominal rate and compounding — plus maturity value. US banks must advertise APY (Truth in Savings, Reg DD) so daily and quarterly compounders are comparable. Daily compounding adds ~6 bp at 5% rates versus annual — small per CD, meaningful across a ladder. The governing relationship is APY = (1 + r/m)^m − 1. The CD APY Calculator computes entirely in your browser — free, private (your figures never leave your device) and instant, recalculating live as you change any input.
How to use CD APY Calculator
- 1Enter Deposit amount (currency), Nominal rate (APR) (%), Compounding, Term (months) into the CD APY Calculator.
- 2The result is computed automatically using APY = (1 + r/m)^m − 1 — there is no button to press.
- 3Change any input to model a different scenario, then copy or share the result.
Why use CD APY Calculator?
- ✓Computes cd apy calculator instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the figures you enter stay private
- ✓Shows the formula, a live worked example and references so you can defend the number
Frequently asked questions
What is the formula behind the CD APY Calculator?+
CD APY Calculator uses APY = (1 + r/m)^m − 1. US banks must advertise APY (Truth in Savings, Reg DD) so daily and quarterly compounders are comparable. The tool substitutes your actual inputs into this relationship and shows the worked example step by step.
What inputs does the CD APY Calculator need?+
Enter Deposit amount (currency), Nominal rate (APR) (%), Compounding, Term (months) and the result updates immediately — there is no button to press. Change any value to model a different scenario in real time.
Is the CD APY Calculator free, and is my data private?+
Yes — it is completely free with no sign-up or usage limit, and it runs entirely in your browser, so the numbers you enter are never uploaded or stored on any server. It is for informational and analytical use, not financial advice.
What should I watch out for when using the CD APY Calculator?+
Daily compounding adds ~6 bp at 5% rates versus annual — small per CD, meaningful across a ladder.
What is the CD APY Calculator based on?+
The method follows authoritative sources: 12 CFR 1030 (Regulation DD) — APY formula. The formula and references are shown on the page so you can verify and cite the result.
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