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Skip to contentMath, dates, health and utility calculators in one workspace
Calculator Studio groups everyday math — percentages, dates, BMI, loan amortization, unit conversions and timezone offsets. Each mode keeps inputs in sync so you can hop between calculators without retyping.
Click Open studio — your files and sidebar context stay on one page.
Pick a tool from the sidebar or a popular chip above. Switch anytime without reload.
Download the result or jump to a related studio with your file still loaded.
Step-by-step pages for the most common tasks in this studio.
Grouped like the sidebar — click to open directly.
Yes — Tentaco studios are free with no account required.
Most modes run entirely in your browser. Server-backed features (file share, DNS lookup) are clearly marked with privacy badges.
57 modes in one workspace — switch instantly from the sidebar without leaving the page.
Many studios work offline after the first visit thanks to the Tentaco PWA. Install the app for the best offline experience.