Science
Free science calculators for physics, chemistry, and biology. Calculate molarity, moles, resistance, voltage, and more with detailed solutions.
Momentum Calculator
Calculate momentum, mass, velocity, and collision analysis
Moment of Inertia Calculator
Calculate rotational inertia for various shapes
Resistor Calculator
Calculate equivalent resistance for series and parallel circuits
Voltage Divider Calculator
Calculate output voltage, resistor values, and power dissipation
Molarity, Molality & Normality Calculator
Calculate solution concentrations for chemistry
Net Ionic Equation Calculator
Get the complete ionic and net ionic equation and spectator ions.
Percent Yield Calculator
Find percent, actual, or theoretical yield — plus theoretical from reactant
Ideal Gas Law Calculator
Solve PV = nRT for pressure, volume, moles, or temperature, with units
Mole Converter Calculator
Convert between mass, moles, and number of particles
Hardy-Weinberg Equilibrium Calculator
Calculate allele and genotype frequencies in populations
Velocity Calculator
Calculate velocity, distance, or time
Acceleration Calculator
Calculate acceleration, velocity, distance, or time
Force Calculator
Calculate force, mass, or acceleration using F=ma
Gravitational Force Calculator
Calculate gravitational force using Newton's Law of Universal Gravitation
Free Online Science Calculators
Solve physics and chemistry problems with our comprehensive science calculators. From Newton's laws to chemical equations, our tools help students, teachers, and professionals perform accurate scientific calculations with step-by-step explanations.
Why Use Our Science Calculators?
Physics Formulas
Calculate force, energy, velocity, acceleration, momentum, and more with built-in physics equations.
Chemistry Tools
Compute molecular weights, molarity, dilutions, and balance chemical equations.
Unit Awareness
Automatic unit conversion ensures your calculations are dimensionally correct.
Formula Reference
See the scientific formulas used in each calculation to reinforce learning.
Accurate Constants
Built-in scientific constants like gravity, Avogadro's number, and speed of light.
Educational Focus
Perfect for homework help, exam prep, and understanding scientific concepts.
How to Use Science Calculators
Select the scientific calculator for your topic - physics, chemistry, or general science.
Enter known values with appropriate units. The calculator handles unit conversions automatically.
View results with full precision and proper scientific notation when appropriate.
Review the formula and calculation steps to understand the science behind the answer.
Use results in lab reports, homework, or further calculations.
Common Use Cases
Physics Problems
Solve mechanics, thermodynamics, electricity, and wave problems for coursework and exams.
Chemistry Lab
Calculate concentrations, dilutions, and stoichiometry for lab experiments.
Engineering Applications
Apply scientific principles to real-world engineering calculations and designs.
Research & Analysis
Perform quick calculations during experiments and data analysis.
Frequently Asked Questions
We recommend using SI units (meters, kilograms, seconds) for consistency. Our calculators can convert between unit systems, but SI units ensure formulas work correctly.