Blog
Guides and explainers on the math behind money, health, and everyday numbers.
VAT Calculator: How to Add and Remove VAT in the UK
Add VAT to a net price or strip it out of a gross total in one step — the free UK VAT calculator shows the net amount, VAT charge, and gross total instantly.
October 22, 2026
UK Mortgage Calculator: How to Work Out Monthly Repayments
Enter your loan amount, interest rate, and term in the UK mortgage calculator to see your exact monthly repayment, total interest, and full cost — instantly and free.
October 22, 2026
How to Calculate Percentage Off Any Price
Use the free percent off calculator to find your exact saving and final price instantly — enter the original price and discount percentage and the result appears right away.
October 22, 2026
Commission Calculator — Calculate Your Earnings or Sales Commission Instantly
Find your commission payout in seconds — enter the sale amount and commission rate to see exactly what you or your sales team will earn.
September 27, 2026
IRA Calculator — See How Much Your Retirement Account Will Grow
Project your traditional or Roth IRA balance at retirement — enter your contributions, expected return rate, and years to retire to see your estimated nest egg.
September 27, 2026
Average Rate of Return Calculator — Find the True Return on Any Investment
Calculate the average annual return on any investment — enter your starting value, ending value, and number of years to get both the simple and compound annual growth rate.
September 27, 2026