What is a Number System? Binary, Octal, Decimal, Hex Explained
A beginner-friendly guide to number systems binary, octal, decimal, and hexadecimal with examples and conversion basics.
10 June 2026
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A beginner-friendly guide to number systems binary, octal, decimal, and hexadecimal with examples and conversion basics.
10 June 2026
Convert between binary, octal, decimal, and hexadecimal with step-by-step working.
Convert text to ASCII codes, binary, hex, and octal.
Add, subtract, and multiply binary numbers with column-by-column steps.
Calculate monthly EMI with full amortization schedule for Indian loans.
Add or remove GST with CGST/SGST breakdown for India.
Calculate exact age in years, months, and days from date of birth.
View all 26 free tools → · Read tutorials · Number system guide