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Significant Figures Counter

Usage Description

This tool counts the number of significant figures in a given number. Significant figures are the digits in a number that contribute to its precision. Enter a number in the input field below, and click "Count Significant Figures" to determine the count.

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 in a number containing a decimal point ARE significant.
  5. Trailing zeros in a number NOT containing a decimal point are NOT significant.
  6. In scientific notation, all digits in the coefficient are significant.

1. Enter Number