Free Online Calculators
A collection of free online calculators for everyday math - from splitting a bill and calculating a discount to figuring out how old someone is in days. Every calculator runs entirely in your browser: no waiting, no signup, no data sent anywhere.
Calculate percentages, percentage of a number, and percentage change instantly.
Calculate the percentage increase between two values.
Find the percentage decrease from one number to another.
Add or remove VAT from any price with configurable tax rates.
Compute discounted prices and total savings on any purchase.
Calculate the tip amount and split the bill fairly among friends.
Compute exact age in years, months, days, hours from any birthdate.
Why Utilify calculators?
Every tool in this category runs entirely in your browser. That means instant results, no data sent to a server, and no signup required to try any of them.
Utilify is designed so that you can bookmark a single tool and get in-and-out in seconds. If a workflow needs several tools, the internal search (⌘K) jumps between them with no full-page reload.