Binary to Decimal Converter
Converts binary to decimal.
Result
- Decimal
- 156
How to use the binary to decimal converter
- Enter the binary number.
- The results update as you type, or press Calculate.
- Read the decimal first, then the supporting figures below it.
Formula
Sum each bit × 2^position.
Worked example
For example, with these inputs:
- Binary number: 10011100
the calculator returns:
- Decimal: 156
Background
Calculators are best used to check working rather than replace it, especially for exams where method marks count. Work the problem by hand first, then confirm with the calculator.
These calculations appear throughout the Singapore syllabus, from primary school percentages and fractions to secondary school algebra and geometry. Understanding the formula makes problem sums easier because you can recognise which quantity is missing.
Frequently asked questions
How does the binary to decimal converter work?
It applies this formula: Sum each bit × 2^position.
Can I use any units?
Yes, as long as every input uses the same unit. The answer will be in that unit (squared for areas, cubed for volumes).