Calculators and converters that work in your browser
Free tools for maths and units, in English and Polish. The numbers you type never leave your device.
Open the unit converterTools
Converters
- Unit converter14 quantities, from length and mass to pressure, flow and torque.
Calculators
- Scientific calculator (coming soon)Trigonometry, logarithms, powers and a calculation history.
- Percentage calculator (coming soon)X% of Y, percentage change and reverse percentages.
- Equation solver (coming soon)Linear and quadratic equations and linear systems, step by step.
Graphs
- Function plotter (coming soon)Several functions at once, with roots, intersections and extrema.