Significant Figures Calculator

Enter the number or value in the significant figures calculator to find the number of significant values.

Sig Fig Calculator

Sig Figs calculator has several functions. You can round the values and know the individual significant figures. You can find E-notation and scientific notation along with the number of decimals in the rounding significant figure (sig fig) calculator.

What are significant figures?

Definition of significant figures is:

“Significant figures of a number are digits that contribute to the precision of that number.”

Rules of Significant figures

The rules used to determine whether a number is a significant figure or not are:

• Non-Zero Digits: All non-zero digits like 1,7,4 e.t.c are significant figures. The number 2345 has 4 significant figures as all digits are non-zero.

• Leading Zeros: The zeros at the start of the values are not significant. For example in the example 0.07, the only significant figure is 7.

• Zeros between sig figs: The zeros that are present between two significant figures are also significant. For example in the number 903, the 0 is significant.

• Zeros after the decimal point: The zeros that are present after a decimal point are also significant e.g zero in 5.0.