Unit Converter
Length, weight, temperature, time conversions.
Top Unit Converter tools
Unit Converter
Length, weight, temperature.
lbs to kg
Pounds to kilograms.
inches to cm
Inches to centimeters.
BMI Calculator
Body Mass Index, metric & imperial.
Loan Calculator
Monthly payment, interest, amortization.
Tip Calculator
Quick tip + bill split.
Time-Zone Converter
Compare a moment across world time zones.
Age Calculator
Years, months, days between dates.
Percentage Calculator
% of, % change, increase by %.
Time Tracker
Stopwatch with task log saved locally.
How to use Unit Converter
- 1Open Unit Converter and drop your file or paste your input into the work area.
- 2Adjust the available options to match what you need — defaults are tuned for the most common case.
- 3Click the action button and let Unit Converter process everything in your browser.
- 4Download or copy the result. Re-run as many times as you like — there are no limits.
Key features
- Unit Converter runs entirely in your browser — your data stays on your device
- No signup, no install, no watermark, no daily limit
- Works on desktop and mobile, on any modern browser
- Fast processing with batch and one-click export
- Free for personal and commercial use
Frequently asked questions
Is Unit Converter free to use?
Yes — Unit Converter tools on Tools Lab PRO are completely free with no daily limits, no watermarks, and no signup required.
Do I need to create an account?
No. Unit Converter works without any signup. An optional free account lets you save history and sync across devices.
Are my files safe and private?
Most Unit Converter tools run entirely in your browser. Files are processed locally and never uploaded unless explicitly stated on the tool page.
Does Unit Converter work on mobile?
Yes. Tools Lab PRO is fully responsive and works on phones, tablets, and desktops in any modern browser including Safari and Chrome.
Is there a file size limit?
There is no fixed limit for in-browser tools — performance is bounded only by your device's memory. Most files complete in seconds.
Can I use Unit Converter commercially?
Yes. Outputs from Unit Converter tools are yours to use commercially, with no licensing fees or attribution required.
Why is Unit Converter better than installing software?
Unit Converter runs instantly in your browser — no install, no updates, works on any OS, and your files stay on your device.
How fast is Unit Converter?
Most operations complete in under a second for typical inputs. Very large files (50 MB+) may take a few seconds depending on your device.
Can I use Unit Converter offline?
Once the page is loaded, in-browser tools continue to work even if you lose your connection. AI tools require connectivity to reach the model provider.
Does Unit Converter add watermarks to outputs?
No. Tools Lab PRO never adds watermarks, branding, or attribution to your downloaded files.
Will using Unit Converter affect my Google rankings?
Faster, smaller, cleaner files improve Core Web Vitals — a direct positive ranking signal. Tools Lab PRO outputs are search-engine friendly by default.
Are the results of Unit Converter reproducible?
Yes for deterministic tools (converters, hashers, formatters). Random or AI tools intentionally vary each run.
What browsers does Unit Converter support?
All modern browsers: Chrome, Edge, Safari, Firefox, Brave, and Opera, on desktop and mobile. Internet Explorer is not supported.
How do I report a bug or request a feature for Unit Converter?
Use the feedback link in the footer. We review every report and ship fixes for popular requests within days.
Is Unit Converter compliant with GDPR and privacy laws?
Yes. In-browser processing means no personal data ever leaves your device, which keeps Tools Lab PRO compliant by design with GDPR, CCPA, and similar laws.