Science Tools

Physics, chemistry, and engineering calculators and converters.

Science is quantitative. Whether you are a student solving homework problems, an engineer checking a design, or a hobbyist exploring physics and chemistry, accurate calculations are essential. Our science calculators cover the most commonly needed formulas across physics, chemistry, and engineering.

Physics tools include Ohm's Law calculator for electrical circuits, the kinetic energy calculator, force calculator, and ideal gas law calculator. The half-life calculator handles radioactive decay problems, while the wavelength calculator works with light and sound waves. The wind chill, heat index, and dew point calculators help interpret weather data.

Chemistry tools include the pH calculator for acid-base problems and the density calculator for mass-volume relationships. The resistor color code decoder translates 4-band, 5-band, and 6-band resistors into ohm values — essential for electronics hobbyists and technicians.

For mathematics in science, the scientific notation converter and significant figures calculator ensure proper representation of measured values. These are critical for lab reports and published research where precision matters.

All formulas are sourced from standard physics and chemistry textbooks. Results include appropriate unit conversions and are displayed with the correct number of significant figures for scientific work.

Popular Science Tools

Ohm's Law Calculator

Calculate voltage, current, resistance, and power using Ohm's Law for electrical circuits.

Kinetic Energy Calculator

Calculate kinetic energy using mass and velocity with unit conversion support.

pH Calculator

Calculate pH from hydrogen ion concentration and vice versa. Includes pOH calculator.

All Science Tools

Concrete Calculator

Calculate concrete volume for slabs, footings, and columns. Estimates bags needed and total cost.

Half-Life Calculator

Calculate radioactive decay, remaining quantity, and decay constant from half-life.

Force Calculator

Calculate force using Newton's second law: F = ma. Supports multiple units.

Wavelength Calculator

Calculate wavelength from frequency and wave speed. Supports light and sound waves.

Resistor Color Code Calculator

Decode resistor values from color bands. Supports 4-band, 5-band, and 6-band resistors.

Scientific Notation Converter

Convert numbers to and from scientific notation with customizable precision.

Significant Figures Calculator

Round numbers to the correct number of significant figures for scientific accuracy.

Density Calculator

Calculate density, mass, or volume using the formula ρ = m/V with multiple units.

Ideal Gas Law Calculator

Solve for pressure, volume, temperature, or moles using PV = nRT.

Wind Chill Calculator

Calculate the wind chill factor and feels-like temperature from air temperature and wind speed.

Heat Index Calculator

Calculate the heat index and apparent temperature from air temperature and relative humidity.

Dew Point Calculator

Calculate dew point, relative humidity, and comfort level from temperature and humidity readings.

Frequently Asked Questions

Are these science calculators suitable for coursework?▼

Yes. Students from high school through undergraduate use them for homework and lab reports. All formulas match standard textbook presentations.

What is the difference between mass and weight?▼

Mass is the amount of matter (kg). Weight is the force of gravity on that mass (Newtons). Our calculators specify which property is being calculated.

How accurate is the resistor color code calculator?▼

It decodes all standard 4-band, 5-band, and 6-band resistors with tolerance and temperature coefficient values. Results match manufacturer datasheets.

Can I convert between scientific and standard notation?▼

Yes. The scientific notation converter handles both directions and lets you customize the number of significant figures displayed.

Do these tools account for significant figures?▼

Yes. The significant figures calculator rounds to the correct number of digits. Individual calculators display results with appropriate precision for their inputs.

Are units automatically converted?▼

Most calculators accept multiple unit systems and display results in your preferred units. Check each tool's input options for supported units.