Welcome to Secret Formula. Want to calculate the discount on a product, or compare prices of two products? Perhaps do something else? Then use one of our "formulas" below.
Discount
Price Per Unit
Calculate VAT/Tax
Calculate without VAT
Buy X, get Y free
Trip Fuel Price (Liter/100km)
Trip Fuel Price (MPG)
Splitting costs of a rental
Tip (Fixed percentages)
Tip (Free percentages)
What's new
Secret Formula is a hobby project by Steven Zeegers. It's written in HTML and JAvascript and uses Bootstrap to look fancy