Engineering & science

Lightweight science and engineering calculators: Ohm's law, density, molarity, number-base conversion, and scientific notation — for homework and bench work.

5 tools in this section

Ohm's Law

Calculate voltage, current, or resistance using V = I × R.

Density

Calculate density from mass and volume (ρ = m/V).

Molarity

Calculate molarity from solute mass, molar mass, and solution volume.

Binary & Hex

Convert decimal numbers to binary and hexadecimal.

Scientific Notation

Convert numbers to and from scientific notation.

Ad slot B · Mid content