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

Perform mathematical operations on significant figures with our calculator. Get step-by-step solutions or use the built-in sig fig counter!

Aug 1, 2025 · Round a number to a quantity of significant figures that you provide. Enter whole numbers, real numbers, scientific notation or e notation. Example inputs are, 3500, 35.0056, …

Significant Figures Calculator Enter a number in this sig fig calculator to count significant figures, equivalent Scientific and E notations.

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

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.

To keep a number’s accuracy when removing digits, it’s necessary to identify its significant figures correctly. Rounding a number up or down alters one or more of its calculated values.

The significant figures calculator undertakes calculations with significant figures and works out how many significant figures (sig figs), i.e., digits, a number holds. Simply input a number or …

Use our Significant Figures Calculator for fast, accurate counting of sig figs in any number. Simplify math & science tasks with ease!