Free Calculators & Units Tools

Unit, currency, number base and Roman numeral conversion plus finance, health and scientific calculators.

• Number Conversion: Convert units and measurements, currencies and denominations, number bases and Roman numerals.
  • Unit & Measurement Converter
  • Currency & Denomination Calculator
  • Base & Radix Converter
  • Roman Numeral Converter
  • Number to Words & Currency Speller
• Advanced Math Suite: Matrices, vectors, complex numbers, sets, sequences, number theory, equations, statistics and probability.
  • Matrix Calculator
  • 2D/3D Vector Calculator
  • Complex Number Calculator
  • Set Theory Calculator
  • Number Sequence Generator
  • Number Theory Explorer
  • Fraction Calculator
  • Equation Solver (Step-by-Step)
  • Logarithm Calculator
  • Statistics Calculator
  • Probability Calculator
  • Combinatorics Calculator
• Science Calculators: Kinematics, molar mass, equation balancing, electronics and geometric shapes.
  • Physics Kinematic Solver
  • Chemistry Molar Mass Calculator
  • Chemical Equation Balancer
  • Resistor & Electronics Calculator
  • Geometric Shape Calculator

Browse all free tools