Significant Figures Calculator
Count Sig Figs
Round to Sig Figs
Formula
Rules: non-zero always, captive zeros yes, leading zeros no, trailing zeros after decimal yes
Frequently Asked Questions
What are significant figures?
Significant figures are the meaningful digits in a number. Rules: 1) Non-zero digits are always significant. 2) Zeros between non-zero digits are significant. 3) Leading zeros are not significant. 4) Trailing zeros after a decimal point are significant.
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