About These Calculators
Science calculators for students and lab professionals. Perform dilution calculations, determine molarity, and solve concentration problems.
Science Calculators
18 toolsDilution Calculator (C1V1=C2V2)
Calculate solution dilutions using the C1V1 = C2V2 formula
Molarity Calculator
Calculate molarity, moles, volume, or molecular weight for solution preparation
pH Calculator
Calculate pH from hydrogen ion concentration
Half-Life Calculator
Calculate radioactive decay and remaining material
Ideal Gas Law Calculator
Calculate PV=nRT gas law problems
Wavelength & Frequency Calculator
Wavelength & Frequency Calculator — convert between wavelength, frequency, and energy
Acceleration Calculator
Calculate acceleration, force, and kinematics
Orbital Velocity Calculator
Calculate satellite orbital speed and period
Pendulum Calculator
Calculate the period, frequency, and length of a simple pendulum at any gravity
Buoyancy Calculator
Calculate buoyant force, displaced volume, and whether an object floats or sinks
pH Buffer Solution Calculator
Calculate buffer solution preparation for target pH
Spectral Wavelength Calculator
Convert between wavelength, frequency, and energy
Ideal Gas Law PV=nRT Calculator
Solve PV=nRT for any variable
Radioactive Decay Calculator
Calculate remaining radioactive material after decay
Molarity Solution Calculator
Calculate molarity from mass, volume, and molar mass
Gravitational Force Calculator
Calculate gravitational attraction between two masses
Noise Exposure Calculator
Calculate safe noise exposure duration at various decibel levels
Random Number Generator
Generate random numbers within a custom range
Frequently Asked Questions
Are these science calculators free?
Yes, all 18 calculators are completely free with no signup required. They run entirely in your browser — no data is sent to any server.
How accurate are these calculators?
Our calculators use industry-standard formulas and are regularly updated. However, they provide estimates — always verify critical calculations with a professional in the relevant field.
Can I use these calculators on my phone?
Yes, all calculators are mobile-responsive and work on any device with a web browser. No app download needed.
Do you save my calculations?
No. All calculations happen in your browser. We don't store any of your inputs or results. Your data stays on your device.
Can I embed these calculators on my website?
Select calculators offer embed codes that you can copy and paste into your website or blog. Look for the "Embed This Calculator" section on individual tool pages.