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Basic Tax Calculator
Calculate percentage-based tax amounts.
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GPA Calculator
Calculate GPA from grades and credit hours.
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Grade Calculator
Convert marks into percentage and letter grade.
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BMI Calculator
Calculate Body Mass Index and the healthy weight range.
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BMR Calculator
Estimate Basal Metabolic Rate (Mifflin-St Jeor formula).
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Calorie Calculator
Estimate daily calorie needs by activity level.
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Scientific Calculator
Advanced math with sin, cos, sqrt and powers – safe parser, no eval.
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Length Converter
Convert mm, cm, m, km, inch, foot, yard and mile.
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Weight Converter
Convert mg, g, kg, ounce, pound and ton.
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Temperature Converter
Convert Celsius, Fahrenheit and Kelvin.
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Area Converter
Convert sqm, sqft, acre, hectare, katha, bigha and more.
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Volume Converter
Convert ml, liter, gallon, cup and cubic units.
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