Tools

See the monthly repayment for any loan, rate and term — plus what overpaying does to the interest and the years.

See how savings or investments grow when interest earns interest — with a year-by-year breakdown.

Work out X% of a number, what percent one number is of another, percentage change, and reverse a percentage increase.

Your exact age in years, months and days — leap-day-safe, with the day of the week you were born.

Days between two dates, working days, add or subtract days, and the weekday or ISO week of any date.

Add or remove VAT at the current Irish rates — or any rate — with the net, VAT and gross laid out.

Where to spend your leave days for the most consecutive days off — computed from each country’s 2026 public holidays.

What inflation does to prices and savings over time: future prices, today’s value of future money, and real rates.

Work out the monthly amount needed to reach a savings target by a chosen date.