Science & Engineering
Physics, chemistry, and engineering calculators for students and professionals.
About Science & Engineering Calculators
Solve physics, chemistry, and engineering problems with our free online science calculators. Designed for students, educators, and professionals, these tools cover fundamental laws and equations across multiple scientific disciplines. The Ohm's Law calculator solves for voltage, current, resistance, and power in electrical circuits, while the density calculator handles mass-volume-density relationships for any material. Mechanics calculators cover velocity, acceleration, force, and kinetic energy using Newton's laws, making them ideal for physics homework and engineering design. Chemistry tools include the molar mass calculator, which parses chemical formulas and computes molecular weights using IUPAC-approved atomic masses, and the pH calculator for acid-base chemistry. The wavelength-frequency calculator bridges wave physics and electromagnetic spectrum analysis. Every calculator shows the formula being used and provides step-by-step solutions, making these tools valuable for learning as well as computation. All tools run in your browser and work on phones, tablets, and desktops.
Featured Calculators
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Frequently Asked Questions
Q: What formulas do the science calculators use?
A: Each calculator uses the standard physics and chemistry formulas taught in academic curricula worldwide. For example, the Ohm's Law calculator uses V=IR and P=IV, the force calculator uses Newton's Second Law F=ma, and the molar mass calculator uses IUPAC-approved atomic weights. Every tool displays the exact formula being used along with step-by-step calculations so you can verify the math.
Q: Are these calculators suitable for academic work?
A: Our science and engineering calculators are excellent study aids and homework helpers. They use the same formulas found in standard physics and chemistry textbooks and display step-by-step solutions. However, for formal academic submissions, always show your own work and verify results. The calculators are particularly useful for checking your manual calculations and building intuition for scientific concepts.