All calculators
18 calculators, listed alphabetically. Each one shows its working step by step and explains the method behind it.
C
D
DC Circuit Analysis Calculator
Equivalent resistance, current, voltage and power for every resistor in a series–parallel circuit, plus Ohm's law.
MathematicsDerivative and Integral Calculator
Derivatives of any order, indefinite and definite integrals, with each rule shown and every answer verified.
E
H
K
M
O
P
pH, pOH and Buffer Calculator
pH of strong and weak acids and bases and of buffers, solved exactly, with Ka and pKa conversions.
MathematicsPolynomial Factorizer
Factor polynomials completely over the integers, with common factors, identities and rational roots explained.
PhysicsProjectile Motion Calculator
Range, maximum height, flight time and impact velocity of a projectile, with a to-scale trajectory graph and steps.
BiologyPunnett Square Calculator
Monohybrid to four-gene crosses with exact genotype and phenotype ratios, for complete, incomplete and codominant genes.
Q
S
SMILES to IUPAC Name
Look up the IUPAC name of a structure from its SMILES, or find the structure of a named compound.
ChemistryStoichiometry Calculator
Limiting reactant, excess left over, and theoretical and percentage yield from any reaction.
MathematicsSystem of Linear Equations Solver
Solve simultaneous linear equations by Gaussian or Gauss–Jordan elimination, with every row operation shown.