Rounding Calculator
Round numbers to significant figures.
Σ The Formula
Real World Examples
# About This Calculator
Rounding is the process of simplifying a number by keeping its value close to what it was but making it easier to read or use.
Common methods include:
• Standard (Half Up): If the next digit is 5 or more, round up. Otherwise, round down.
• Decimal Places: Limiting digits after the dot (e.g. currency to 2 places).
• Significant Figures: Keeping only the most meaningful digits.
This tool allows precise control over how you want to round your numbers for math homework, financial reports, or scientific data.
How To Use
- Enter the Number to round.
- Enter the target Precision (e.g., 2 for two decimal places).
- Select the Mode (Decimal Places or Significant Figures).
- Click Round.
Frequently Asked Questions
What is the rule for rounding 5?+
What is truncating?+
Difference between Sig Figs and Decimals?+
Why do we round?+
What is Floor and Ceiling?+
Is Rounding Calculator free to use?+
About
Rounding is the process of simplifying a number by keeping its value close to what it was but making it easier to read or use.
Common methods include:
• Standard (Half Up): If the next digit is 5 or more, round up. Otherwise, round down.
• Decimal Places: Limiting digits after the dot (e.g. currency to 2 places).
• Significant Figures: Keeping only the most meaningful digits.
This tool allows precise control over how you want to round your numbers for math homework, financial reports, or scientific data.