HomeFree online Scientific Calculator Scientific Calculator Scientific Calculator First Number: Please enter a valid number. Looks good! Second Number: Please enter a valid number. Looks good! Operation: Select OperationAddition (+)Subtraction (-)Multiplication (×)Division (÷)Sine (sin)Cosine (cos)Tangent (tan)Logarithm (log)Natural Logarithm (ln)Exponent (^)Square Root (√) Please select an operation. Calculate ResetResult: