Free Online
Calculators

CalcHub is a comprehensive platform of free online calculators designed for students, professionals, business owners, and anyone who needs quick, accurate calculations. Whether you're calculating income tax across multiple countries, planning a mortgage, converting currencies, or checking your BMI, CalcHub delivers instant results right in your browser.

Financial Calculators

Our finance suite includes an income tax calculator supporting 6 countries (USA, UK, Canada, Australia, Pakistan, and India) with up-to-date tax slabs and slab-by-slab breakdowns. The VAT / Sales Tax calculator covers 20+ countries with auto-loaded rates. Plan your payments with our loan EMI calculator complete with amortization schedules and CSV export, or model investment growth with the compound interest calculator featuring monthly contributions and year-by-year breakdowns.

Health & Wellness

Check your body mass index with our BMI calculator supporting both metric and imperial units, complete with WHO category ratings and health tips. Use the age calculator to find your exact age in years, months, and days from any date of birth.

Math & Everyday Tools

The percentage calculator offers five calculation modes for any percentage problem you encounter. Shopping? The discount calculator shows your savings instantly with optional tax calculations. Convert between metric and imperial with the unit converter (length, weight, temperature) and the area converter for land measurements.

Date & Time

Need to know the exact number of days between two dates? Our date difference calculator breaks it down into years, months, days, weeks, and total hours. The time duration calculator handles time-based calculations with precision.