🧮 Calculators
18 free tools — no signup, no paid tier
BMI Calculator
Calculate Body Mass Index instantly.
Percentage Calculator
Calculate percentages instantly.
Tip Calculator
Calculate tip and split bills.
Age Calculator
Calculate exact age from birth date.
VAT Calculator
Add or remove VAT from any price instantly.
Discount Calculator
Calculate sale price and savings from any discount.
Date Difference Calculator
Calculate days, weeks, months between two dates.
Time Duration Calculator
Add and subtract time durations.
Triangle Calculator
Area, perimeter, angles of any triangle.
Scientific Calculator
Full scientific calculator with sin, cos, log.
Aspect Ratio Calculator
Calculate aspect ratio or resize dimensions.
Electricity Cost Calculator
Calculate electricity bill from watts and kWh rate.
GPA Calculator
Calculate GPA from grades.
Inflation Calculator
Calculate purchasing power change over time.
Calories Burned Calculator
Calories burned by activity, weight and duration.
Sleep Calculator
Find optimal wake times based on sleep cycles.
Fuel Cost Calculator
Calculate trip fuel cost from distance and MPG.
Shipping Weight Calculator
Dimensional weight calculator for UPS, FedEx, DHL.