Science Tools
72 free science tools calculators — including Molar Mass Calculator and Ohm's Law Calculator. Instant results in your browser, with the formula shown.
Search Science Tools calculators
Molar Mass Calculator
Calculate the molar mass of chemical compounds based on their formula.
pH Calculator
Calculate pH, pOH, and hydrogen ion concentration.
Ohm's Law Calculator
Calculate voltage, current, and resistance.
Density Calculator
Calculate density, mass, or volume given the other two variables.
Boyle's Law Calculator
Calculate the relationship between pressure and volume of a gas at constant temperature.
Molar Concentration Calculator
Calculate molar concentration of chemical solutions.
Ideal Gas Law Calculator - PV=nRT
Calculate ideal gas properties using PV=nRT.
Specific Heat Calculator
Calculate heat required to change temperature of a substance.
Molecular Formula Calculator
Calculate molecular formula from element percentages.
Boyle Law Interactive Calculator
Calculate pressure or volume at constant temperature.
Wavelength & Frequency Calculator
Calculate wavelength, frequency, or speed.
Half-Life Calculator
Calculate remaining amount after half-lives.
Force Calculator (F=ma)
Calculate force from mass and acceleration.
Advanced Molar Mass Calculator
Calculate molar mass of chemical compound.
Solution pH Calculator
Calculate solution pH from H+ concentration.
Half-Life Decay Calculator
Calculate remaining substance after radioactive decay.
Ideal Gas Law Calculator
Calculate pressure, volume, or temperature of ideal gas.
Ideal Gas Calculator
Calculate using the ideal gas law PV = nRT.
Half Life Calculator
Calculate radioactive decay and half-life of substances.
Radioactive Decay Calculator
Calculate remaining substance after radioactive decay.
Buffer Solution pH Calculator
Calculate the pH of buffer solutions.
Solution Concentration Calculator
Calculate solution concentration in g/L and mol/L.
Gas Density Calculator
Calculate gas density at given conditions.
Charles Law Calculator
Calculate the relationship between gas volume and temperature.
Gay-Lussac Law Calculator
Calculate the relationship between gas pressure and temperature.
Avogadro Number Calculator
Calculate number of molecules using Avogadro number.
Heat Transfer Calculator
Calculate heat transfer rate by conduction.
Thermal Expansion Calculator
Calculate linear thermal expansion of materials.
Gibbs Free Energy Calculator
Calculate Gibbs free energy to determine reaction spontaneity.
Reaction Rate Calculator
Calculate chemical reaction rate.
Activation Energy Calculator
Calculate activation energy using Arrhenius equation.
Equilibrium Constant Calculator
Calculate equilibrium constant Kc from concentrations.
Solubility Product Calculator (Ksp)
Calculate solubility product constant Ksp.
Concentration Dilution Calculator (C1V1=C2V2)
Calculate volume or concentration after dilution.
Pressure Calculator
Calculate pressure from force and area.
Work & Energy Calculator
Calculate work done and energy.
Photon Energy Calculator
Calculate photon energy from frequency or wavelength.
Acid-Base Titration Calculator
Calculate titrant volume for acid-base titration.
Enthalpy Change Calculator
Calculate enthalpy change of a reaction.
Electrochemical Cell Calculator
Calculate electrochemical cell potential.
Solution Dilution Calculator
Calculate solution volume for dilution.
Enthalpy Calculator
Calculate enthalpy change of reaction.
Buffer Solution Calculator
Calculate buffer pH using Henderson-Hasselbalch.
Advanced Specific Heat Calculator
Calculate heat required to change temperature.
Molarity & Dilution Calculator
Calculate molarity and dilution volume.
Dilution Calculator
Calculate solution dilution using C1V1 = C2V2.
Henry Law Calculator
Calculate gas solubility in liquid using Henry law.
Raoult Law Calculator
Calculate vapor pressure of solutions using Raoult law.
About Science Tools
72 free Science Tools tools are listed on this page, led by Molar Mass Calculator, Ohm's Law Calculator and pH Calculator in popularity order. Each computes its result directly in your browser and shows the formula it applies. The grid also covers Boyle Law Interactive Calculator, so most common Science Tools questions have a matching tool. No accounts, no fees — every answer ships with the arithmetic behind it.
What you can calculate
Molar Mass Calculator, Ohm's Law Calculator, pH Calculator, Boyle Law Interactive Calculator
Top Science Tools Calculators
Molar Mass Calculator
Calculate the molar mass of chemical compounds based on their formula.
pH Calculator
Calculate pH, pOH, and hydrogen ion concentration.
Ohm's Law Calculator
Calculate voltage, current, and resistance.
Density Calculator
Calculate density, mass, or volume given the other two variables.
Boyle's Law Calculator
Calculate the relationship between pressure and volume of a gas at constant temperature.
FAQs about Science Tools
What is the best calculator in the Science Tools category?
The most popular Science Tools tools on this site are Molar Mass Calculator, Ohm's Law Calculator and pH Calculator, in that order. All are free, run instantly in your browser, and show their calculation steps — pick the closest to your case or try more than one.
Are the Science Tools calculators free to use?
Yes — all 72 tools in the Science Tools category are completely free: they run in your browser with no sign-up and never send your inputs anywhere. Enter your values and the result appears instantly, with the formula used shown.
How many calculators are in the Science Tools category?
The Science Tools category currently lists 72 free tools. The most used are Molar Mass Calculator, Ohm's Law Calculator and pH Calculator, and all of them are reachable directly from the grid on this page, with no registration required.