100+ Free Scientific Tools for Students & Professionals
Solve complex physics equations, chemistry problems, and engineering calculations instantly. Free, accurate tools created by Mr. Dhananjoy Ghosh.
Pro Tip: Use parentheses for complex equations. Example: (2+3)×(4-1)
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Learn how to solve common scientific problems
Our scientific calculator handles trigonometry (sin, cos, tan), logarithms, exponents, square roots, and parentheses. All trigonometric functions work in degrees.
Ohm's Law (V = I × R) calculates voltage, current, or resistance when two values are known. Essential for electrical engineering and circuit design.
Calculate moles from mass and molar mass, molarity from moles and volume, and dilution factors for laboratory preparations.
All calculators use precise scientific formulas with double-precision floating-point arithmetic, providing professional-grade accuracy.
Yes! These calculators are perfect for students. They provide step-by-step solutions and explanations for common physics and chemistry problems.
Completely free! No registration required. Created by Mr. Dhananjoy Ghosh to help students and professionals worldwide.
Use our resistor calculator or learn the color code: Black=0, Brown=1, Red=2, Orange=3, Yellow=4, Green=5, Blue=6, Violet=7, Grey=8, White=9.
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Calculate loan payments, interest rates, investment returns, and compound interest instantly.
Calculate BMI, body fat percentage, calorie needs, BMR, and other health metrics.
Convert between units: length, weight, temperature, volume, speed, and 30+ other categories.