Significant Figures Calculator
About Significant Figures
Significant figures (sig figs) are the digits in a number that carry meaning contributing to its precision.
Rules for Significant Figures:
1. All non-zero digits are significant
2. Zeros between non-zero digits are significant
3. Leading zeros are not significant
4. Trailing zeros are significant only if there's a decimal point
1. All non-zero digits are significant
2. Zeros between non-zero digits are significant
3. Leading zeros are not significant
4. Trailing zeros are significant only if there's a decimal point
Examples:
- 123.45 has 5 significant figures
- 0.00123 has 3 significant figures
- 1000 has 1 significant figure
- 1000.0 has 5 significant figures
Applications:
- Scientific measurements
- Laboratory calculations
- Engineering calculations
- Data analysis
- Error propagation
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