Science & Physics
10 tools in this category
Physics, chemistry, and scientific calculators for students and professionals. Browse all free science & physics available on Softzar. Every tool runs in your browser for instant results and complete privacy.
All Tools
About Science & Physics
Science and physics calculators help students, teachers, and professionals solve problems using fundamental scientific formulas. Instead of manual calculations and unit conversions, you get instant, accurate results for physics, chemistry, and engineering problems.
Softzar covers essential STEM topics: Ohm's Law for electrical circuits, density calculations, speed and velocity, Newton's Second Law (F=ma), kinetic energy, molarity for chemistry solutions, acceleration, pressure, half-life for radioactive decay, and momentum. Each calculator shows the formula so you learn as you calculate.
All tools run in your browser with no sign-up or downloads needed.
How to Use Science & Physics
Select the science or physics calculator for your problem. Enter the values you know — any two values are typically enough — and the tool calculates the remaining variable. Units are shown alongside results.
Frequently Asked Questions
Are these calculators suitable for homework and exam prep?
Yes. The calculators use standard scientific formulas taught in high school and college courses. They are great for checking your work, understanding relationships between variables, and practicing problems. Results include the formula and calculation steps.
What unit systems do you support?
Most calculators support both SI (metric) and imperial units. For example, the speed calculator works with km/h, mph, m/s, and knots. The pressure calculator supports Pa, kPa, psi, bar, atm, and more.
Can I use these for professional engineering work?
The calculators use standard scientific formulas and are useful for quick estimates and initial design work. For professional engineering that requires certified accuracy or compliance with specific standards, use specialized engineering software.