© 2025 Babal Tools
Count significant figures and perform operations with proper rounding.
Accurately count significant figures in any number, including scientific notation.
Perform addition, subtraction, multiplication, and division with proper sig fig rounding.
Handles numbers in scientific notation and converts output appropriately.
Shows both raw and rounded results with explanations.
A comprehensive tool for working with significant figures. Count the number of significant figures in any number and perform addition, subtraction, multiplication, and division with proper rounding according to scientific rules.
Select between Sig Fig Counter or Operations Calculator tabs.
Input your numbers (scientific notation supported).
For operations, choose the arithmetic operation (+, -, ×, ÷).
See the significant figure count or properly rounded calculation result.