Free · No signup · Mobile-first
Simple calculators for everyday life
From splitting dinner to checking your GPA — fast answers, clear formulas, and a calm interface that works on any phone.
All calculators
Percentage Calculator
Find percentages, increases, and decreases.
Discount Calculator
Sale price after a percent off.
Tip Calculator
Split the bill and tip in seconds.
Age Calculator
Your exact age in years, months, days.
Days Between Dates Calculator
Count days between any two dates.
Time Duration Calculator
Hours and minutes between two times.
Hours Worked Calculator
Daily hours minus your break.
Final Grade Calculator
What you need on your final exam.
GPA Calculator
Average your grades on a 4.0 scale.
Hourly to Salary Calculator
Convert hourly pay to annual salary.