🔢 Mathematics Calculators
Explore 64 free mathematics calculators on DigiToolkit. Every tool gives instant, accurate results with the formula and a worked example so you understand the maths behind the answer.
Popular Mathematics calculators
Arithmetic
View Arithmetic →🔢Mathematics
BODMAS Calculator
Safely evaluate the mathematical expression
Open calculator →🔢Mathematics
Decimal Calculator
Apply the chosen arithmetic operation to the two numbers
Open calculator →🔢Mathematics
Difference Calculator
Apply the chosen arithmetic operation to the two numbers
Open calculator →🔢Mathematics
Division Calculator
Apply the chosen arithmetic operation to the two numbers
Open calculator →🔢Mathematics
Long Division Calculator
Apply the chosen arithmetic operation to the two numbers
Open calculator →🔢Mathematics
Modulo Calculator
remainder = a - b x floor(a/b)
Open calculator →🔢Mathematics
Multiplication Calculator
Apply the chosen arithmetic operation to the two numbers
Open calculator →🔢Mathematics
Rounding Calculator
Round to the chosen number of decimal places
Open calculator →Calculus
View Calculus →🔢Mathematics
Calculus Calculator
Symbolic algebra: simplify, expand, differentiate or evaluate the expression
Open calculator →🔢Mathematics
Derivative Calculator
Symbolic differentiation with respect to the variable
Open calculator →🔢Mathematics
Double Integral Calculator
Numeric integration (Simpson's rule) from a to b
Open calculator →🔢Mathematics
Integral Calculator
Numeric integration (Simpson's rule) from a to b
Open calculator →🔢Mathematics
Laplace Transform Calculator
Symbolic algebra: simplify, expand, differentiate or evaluate the expression
Open calculator →🔢Mathematics
Limits Calculator
Symbolic algebra: simplify, expand, differentiate or evaluate the expression
Open calculator →Number Systems
View Number Systems →🔢Mathematics
Binary Addition Calculator
Parse from the source base and render in the target base
Open calculator →🔢Mathematics
Binary Calculator
Parse from the source base and render in the target base
Open calculator →🔢Mathematics
Binary Subtraction Calculator
Parse from the source base and render in the target base
Open calculator →🔢Mathematics
Hexadecimal Calculator
Parse from the source base and render in the target base
Open calculator →🔢Mathematics
Integer Calculator
Apply the chosen arithmetic operation to the two numbers
Open calculator →🔢Mathematics
Two's Complement Calculator
Parse from the source base and render in the target base
Open calculator →Equations
View Equations →🔢Mathematics
Cubic Equation Solver
Solve ax^3 + bx^2 + cx + d = 0 numerically
Open calculator →🔢Mathematics
Equation Solver
x = -b / a
Open calculator →🔢Mathematics
Linear Equation Calculator
x = -b / a
Open calculator →🔢Mathematics
Quadratic Equation Calculator
x = (-b +/- sqrt(b^2 - 4ac)) / 2a
Open calculator →🔢Mathematics
Simultaneous Equations Solver
Solve a1x+b1y=c1 and a2x+b2y=c2 by Cramer's rule
Open calculator →Fractions
View Fractions →🔢Mathematics
Adding Fractions Calculator
Apply the operation, then simplify by the GCD
Open calculator →🔢Mathematics
Dividing Fractions Calculator
Apply the operation, then simplify by the GCD
Open calculator →🔢Mathematics
Fraction Calculator
Apply the operation, then simplify by the GCD
Open calculator →🔢Mathematics
Mixed Fraction Calculator
Apply the operation, then simplify by the GCD
Open calculator →🔢Mathematics
Multiplying Fractions Calculator
Apply the operation, then simplify by the GCD
Open calculator →Matrices
View Matrices →🔢Mathematics
Eigenvalue Calculator
Compute determinant, inverse or transpose of a square matrix
Open calculator →🔢Mathematics
Inverse Matrix Calculator
Compute determinant, inverse or transpose of a square matrix
Open calculator →🔢Mathematics
Matrix Calculator
Compute determinant, inverse or transpose of a square matrix
Open calculator →🔢Mathematics
Matrix Multiplication Calculator
Standard matrix multiplication (columns of A must equal rows of B)
Open calculator →🔢Mathematics
Matrix Solver
Compute determinant, inverse or transpose of a square matrix
Open calculator →Number Theory
View Number Theory →🔢Mathematics
Factorial Calculator
n! = n x (n-1) x ... x 1
Open calculator →🔢Mathematics
Fibonacci Calculator
F(n) = F(n-1) + F(n-2), starting 0, 1
Open calculator →🔢Mathematics
HCF/GCD Calculator
GCD via Euclid's algorithm; LCM = product / GCD pairwise
Open calculator →🔢Mathematics
LCM Calculator
GCD via Euclid's algorithm; LCM = product / GCD pairwise
Open calculator →🔢Mathematics
Prime Factorization Calculator
Trial division to express n as a product of primes
Open calculator →Algebra
View Algebra →🔢Mathematics
Algebra Calculator
Symbolic algebra: simplify, expand, differentiate or evaluate the expression
Open calculator →🔢Mathematics
Factoring Calculator
Symbolic algebra: simplify, expand, differentiate or evaluate the expression
Open calculator →🔢Mathematics
Partial Fraction Calculator
Symbolic algebra: simplify, expand, differentiate or evaluate the expression
Open calculator →🔢Mathematics
Simplification Calculator
Symbolic algebra: simplify, expand, differentiate or evaluate the expression
Open calculator →Averages
View Averages →Ratios
View Ratios →🔢Mathematics
Golden Ratio Calculator
phi about 1.6180339887; longer = value x phi, shorter = value / phi
Open calculator →🔢Mathematics
Proportion Calculator
A/B = C/D => D = C x B / A
Open calculator →🔢Mathematics
Ratio Calculator
Simplify A:B by their GCD; scale proportionally if a target is given
Open calculator →Trigonometry
View Trigonometry →🔢Mathematics
Inverse Sine Calculator
Return the inverse trig angle in degrees and radians
Open calculator →🔢Mathematics
Sine Calculator
Evaluate sin/cos/tan of the angle (degrees converted to radians)
Open calculator →🔢Mathematics
Trigonometry Calculator
Evaluate sin/cos/tan of the angle (degrees converted to radians)
Open calculator →Percentages
Roots
Constants
Functions
About mathematics calculations
DigiToolkit's mathematics tools make everyday and professional calculations fast and reliable. Each calculator is built around a generally accepted formula, validates your inputs, and explains the result in plain language. Because everything runs in your browser, your data stays private and the result appears the moment you press Calculate.
Tips for accurate results
- Use consistent units across related fields.
- Check the worked example on each page to confirm your inputs.
- Read the assumptions — some calculators use standard rates or methods that may differ from your situation.
Mathematics calculators — FAQs
What can I do with the mathematics calculators?
The Mathematics section has 64 free calculators. Each shows its formula, a worked example and instant results.
Are these calculators free?
Yes. Every calculator is free, with no sign-up, and runs entirely in your browser.
Do I need to install anything?
No. All calculators work directly in your web browser on mobile and desktop.
How accurate are the results?
Each tool uses the standard formula for its purpose and shows the full working so you can verify the answer.