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Science

Science Calculators

Science is where calculators earn their keep: every lab result, every engineering spec and every physics problem comes back to a formula. This section collects the calculations that appear most often in physics and chemistry — velocity, acceleration, energy, momentum, molar mass and dilution — each showing its formula, working one example end to end, and explaining what the number physically means rather than just displaying it. Free, no signup, and everything runs in your browser.

Physics

v

Velocity Calculator

Speed, velocity, average speed and displacement from time.

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a

Acceleration Calculator

Acceleration, final velocity, displacement and time from kinematics.

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E

Kinetic Energy Calculator

Kinetic, potential and total mechanical energy for a moving object.

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p

Momentum Calculator

Momentum and collision outcomes from mass and velocity.

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Chemistry

M

Molar Mass Calculator

Molar mass from a chemical formula, with element breakdown.

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C₁V₁

Dilution Calculator

C₁V₁ = C₂V₂ for stock serial dilutions and standard solutions.

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Why we built the science section

Science formulas are simple; what trips people up is knowing which one applies and what the answer means. A number with no units and no context is not a result — it is a guess with decimal points. So every tool here states the formula, works a full example with the arithmetic visible, and then says what the number represents: why a fall accelerates at 9.81 m/s², why a heavier object does not fall faster in a vacuum, what a 1:1000 serial dilution really means at the bench.

This section is new and it is growing quickly. Next up: molarity and pH calculators, momentum conservation in two dimensions, projectile motion, density and the ideal gas law. If you need a specific tool urgently, the contact link in the footer goes straight to the build queue.

Frequently asked questions

1. Which science calculator should I use first?

For motion problems start with the velocity or acceleration calculator; for anything involving collisions or force over time use the momentum calculator; for raising or dropping something use the energy calculator. For lab work, molar mass converts between grams and moles, and dilution sizes a stock down to a working concentration.

2. Are the formulas the real physics ones, or simplified?

They are the standard textbook formulas — the same ones used in introductory physics and general chemistry courses. Where a real-world effect matters (air resistance, significant figures, activity corrections) the article notes it, so you know when the idealised answer needs a correction.

3. What units should I use?

The calculators are unit-agnostic: enter consistent units and the arithmetic works. For physics, SI units (metres, kilograms, seconds, joules) are the safest; for chemistry keep concentration and volume units matching, such as mg/mL with mL throughout, and g/mol for molar mass.

4. Can I use these for homework or lab reports?

Yes, and you should show the formula and the substitution alongside the result. Each page displays the worked example in full so you can follow the reasoning, but most marks come from the working rather than the number — check significant figures against the precision of your measurements before writing a result.