Calculators
Free Calculator Tools
Access 21 free browser-based calculators for math, chemistry, and physics. No sign-up is required for calculator tools.
Math calculators
Radical Calculator
Most usedSimplify square roots, cube roots, and other radicals.
Synthetic Division Calculator
Most usedDivide a polynomial by x − c and get the quotient, remainder, and table.
Absolute Value Calculator
PopularSolve |ax + b| equations and inequalities with both cases shown.
Find the turning point of a quadratic from its coefficients.
Rewrite a quadratic in vertex form one step at a time.
Get the vertex, focus, directrix, and axis of symmetry.
Discriminant Calculator
QuickCompute b² − 4ac and see how many real roots there are.
Turn inequalities into intervals and back, with a number line.
Solve AND/OR and double inequalities with every step shown.
Chemistry calculators
Molarity Calculator
Most usedFind concentration in mol/L from moles and volume.
Chemical Equation Balancer
Most usedFind the coefficients that conserve every element.
Convert between grams and moles using molar mass.
Mole ratios, grams-to-grams conversions, limiting reactant, and yield.
Work out stock and final volumes with C₁V₁ = C₂V₂.
Convert between parts per million, percent, and mg/L.
Physics calculators
Projectile Motion Calculator
PopularFind range, maximum height, and time of flight.
Apply Newton’s law of gravitation to two masses.
Get field strength from force and charge or from a point charge.
Convert RPM, frequency, or angle over time to ω.
Compute work from force, distance, and angle.
Find static or kinetic friction from μ and the normal force.
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