Significant Figures Calculator

Round a number to a given number of significant figures and display in standard, scientific, and engineering notation.

Number

Significant Figures (1–10)

Rounded to 4 sig figs12350

Standard12350

Scientific notation1.235e+4

Engineering notation12.35 × 10^3

Significant digits in original (12345.678):

12345.678

Underlined digits are significant (8 total).