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Browse our complete collection of free online calculators and tools for unit conversion, finance, gaming, education, and business.
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Everyday helpers for study, work, schedules, attendance, and quick decisions.
Attendance Calculator
Compute attendance rate, remaining targets, and excused absences handling.
BMI Calculator
Calculate body mass index, weight category, and healthy weight range with metric or imperial units.
BMR Calculator
Estimate basal metabolic rate and daily maintenance calories with metric or imperial units.
Calorie Calculator
Estimate maintenance calories, calorie targets, and starter macros for fat loss, maintenance, or lean gain goals.
Experience Calculator
Calculate total work experience across roles with overlap handling.
SGPA Calculator
Semester GPA based on course credits and grade points.
Face Shape Calculator
Determine face shape from key measurements with confidence scoring.
Discount Calculator
Calculate sale price after discount with optional tax. Supports percentage and fixed discounts.
Tip & Tax Calculator
Calculate restaurant bill with tip, tax, and split among multiple people.
Electricity Cost Calculator
Estimate appliance electricity usage and monthly or yearly running cost from watts, hours, and electricity rate.