Company · About

About CD Calculators

CD Calculators converts certificate-of-deposit questions into clear, checkable numbers — and shows the formula behind every result we publish.

Calculators

Free

Cost

None

Sign-up

On-device

Your inputs

People weighing up a decision

Anyone considering whether to lock money into a CD, for how long, and at what rate. Enter your numbers and the answer — plus the math behind it — appears in seconds.

THE SAVER

Shoppers and switchers

People sitting on a maturing CD or a savings balance who want a clean side-by-side answer: CD against savings, Treasuries or I bonds, and renewing against moving.

THE COMPARER

Ladder builders

Savers building a ladder or timing maturities around a goal, with the blended yield and the dates their cash frees up worked out for them.

THE PLANNER

What we stand for

Publish the math

Every calculator prints the formula and substitutes your numbers into it. Where we cannot show how a number was reached, we do not publish it.

Estimates, labelled as estimates

Figures are worked out at full precision and rounded only when displayed. Your bank's disclosure — its compounding, day-count and penalty terms — governs the final result, and every page says so.

Independent, with no dark patterns

No sign-up, no email gate ahead of a result, and nothing placed between your inputs and your answer. The site is not monetised today; should that ever change it will be disclosed, and it will never touch the math or the rankings.

Dated rather than evergreen

Every rate carries the date on which it was checked and is labelled illustrative. We would sooner show a timestamp you can judge than imply a freshness we cannot guarantee.