Science Calculators

ArrayKit's science calculators cover physics, chemistry, electronics and weather — work out density, mass and speed, chemistry values like molarity and molecular weight, electrical quantities with Ohm's law, resistor color codes and voltage drop, and weather metrics such as wind chill, heat index and dew point. Each calculator runs entirely in your browser, so the values you enter stay on your device and nothing is uploaded. They apply standard scientific formulas and show the working where it helps, making them handy for homework, lab work, electronics projects and quick checks.

• Density Calculator — Solve density, mass or volume from the density formula ρ = m/V.
• Mass Calculator — Calculate mass from density and volume, or from force and acceleration.
• Weight on Planets Calculator — Find your weight on the Moon and other planets from mass and gravity.
• Speed Calculator — Solve speed, distance or time and convert between mph, km/h and m/s.
• Molarity Calculator — Solve molarity, moles or volume for a solution (M = mol/L).
• Molecular Weight Calculator — Compute the molar mass of a chemical formula like H2O or C6H12O6.
• Ohm’s Law Calculator — Solve voltage, current, resistance and power from any two values.
• Resistor Color Code Calculator — Convert resistor color bands to resistance and back, with tolerance.
• Voltage Drop Calculator — Estimate voltage drop over a wire run from gauge, length and current.
• Electricity Cost Calculator — Estimate the energy use and running cost of an appliance.
• Wind Chill Calculator — Calculate the wind chill “feels like” temperature from temperature and wind.
• Heat Index Calculator — Calculate the heat index “feels like” temperature from heat and humidity.
• Dew Point Calculator — Calculate the dew point from temperature and relative humidity.

Frequently asked questions

Do I need to install anything to use these science calculators?

No. Every science calculator on ArrayKit runs directly in your browser, so there is nothing to install and the values you enter are processed locally on your device.

Do the science calculators send my values to a server?

No. All of the math happens in your browser, so the numbers you type never leave your device or get uploaded to ArrayKit.

Which science calculators does ArrayKit offer?

The category includes physics tools (density, mass, weight, speed), chemistry tools (molarity, molecular weight), electronics tools (Ohm's law, resistor color code, voltage drop, electricity cost) and weather tools (wind chill, heat index, dew point).

Are these science calculators accurate enough for lab work?

They use standard textbook formulas and full floating-point precision, so they are well suited to homework and estimates. For regulated or safety-critical work, always confirm results against your own references and rounding rules.