CALCULATORS
Fill in the three known values and get the unknown X. Choose direct proportion (more → more) or inverse (more → less) depending on the problem.
Also useful if you are looking for: proportion calculator · cross multiplication calculator · inverse proportion
Local processing
LOCAL PROCESSING
The file and text never leave your device.
Fill in the three known values and get the unknown X. Choose direct proportion (more → more) or inverse (more → less) depending on the problem. Click Process, then download or copy the result when it is ready.
The most common office method for splitting costs, scaling recipes, converting plan scales and estimating work times.
FREQUENTLY ASKED QUESTIONS
No. The operation runs locally in your browser and PriviTools never receives the content.
No. The tool works directly in modern browsers, with no account and no charge.