Reviewed 6 November 2026. This practical guide explains the decisions and checks that help you use the related tool correctly.
Understand the task
Decimal uses ten symbols, binary uses 0 and 1, and hexadecimal uses sixteen symbols: 0–9 and A–F. Each position represents a power of the base. Binary 1011 means 8 + 0 + 2 + 1, which equals decimal 11.
Important details to check
Hexadecimal is compact because one hex digit represents four binary bits. It is common in colour values, memory addresses and debugging. The digits 10 represent ten in decimal, two in binary and sixteen in hexadecimal, so always identify the base.
Recommended workflow
Enter a whole number, select its current base, choose a target base and compare the output with a small example you can calculate by hand.
Step-by-step checklist
- Read the instructions for the file, assignment or service you are working with.
- Keep an unchanged copy of important source material.
- Use the related tool and review the result instead of assuming every conversion is perfect.
- Check the output in the application or context where it will actually be used.
Frequently asked questions
Is hexadecimal a different value from decimal? No, it is another notation. Why does binary use two symbols? Base 2 has two digit symbols.