Add, subtract, multiply and divide significant figures, with step-by-step explanation and sig fig counter

Use the significant figures calculator to perform arithmetical operations (addition, subtraction, multiplication, division) and get the results rounded to the correct number of significant figures.

Aug 1, 2025 · The calculator does the math and rounds the answer to the correct number of significant figures (sig figs). You can use this calculator to double check your own calculations using significant …

Calculate mathematical expressions with proper significant figures. Shows step-by-step calculations and significant figure rules.

A significant figures calculator counts and rounds digits that show measurement precision, using simple rules for zeros and standard rounding, and applies different rules for addition/subtraction versus …

2 days ago · Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Use our sig fig calculator to calculate significant figures in a number or to round a number using significant digits rounding rules.

Sig figs (significant figures or significant digits) calculator and counter with steps. Supports addition, subtraction, multiplication, division, exponents, logarithms and antilogarithms.

This calculator rounds the given number to the necessary quantity of significant figures, replacing the “leftover numbers” with zeros. For example, rounding 11 to one significant figure will give 10 as an …

Use our significant digits calculator in "counter" mode to count and examine the significant figures in any number. See below for the rules for rounding when performing arithmetic operations with numbers …