UnitHarbor – free online unit converter
Fast, accurate conversions – plus the tools and knowledge behind them.
UnitHarbor is our flagship free online unit converter, built for speed, accuracy, and simplicity. Convert between units in 16 categories with instant results, use smart tools like the Recipe Scaling Calculator and Food Calories Tracker, and learn more in a library of 130 in-depth articles and a 220-term measurement glossary.
Features
Length Converter
Convert meters, feet, inches, kilometers, miles and more.
Weight Converter
Convert kilograms, pounds, ounces, grams instantly.
Temperature Converter
Convert Celsius, Fahrenheit, and Kelvin.
Currency Converter
Real-time exchange rate conversions for 50 currencies.
Recipe Scaling Calculator
Adjust ingredient quantities for any serving size.
Food Calories Tracker
Monitor nutrition and calorie intake.
Knowledge Database
130 educational articles on measurement, cooking, science, construction and more.
Measurement Glossary
220 measurement terms from A to Z, with definitions and examples.
Specialist tools
Bulk converter, construction calculators and interactive visual comparators.
Everything you can convert
- Length
- Weight/Mass
- Volume
- Temperature
- Area
- Speed
- Time
- Pressure
- Energy
- Power
- Force
- Angle
- Fuel Consumption
- Data Storage
- Numeric Base
- Currency
Popular conversions
Free – with Pro tools if you need more
UnitHarbor is completely free to use. All basic conversion tools and calculators are available without any cost or registration required. UnitHarbor Pro adds advanced features for users who want even more functionality.
Widget & API
Add a UnitHarbor converter to your own website with the embeddable widget, or build on the UnitHarbor API.
UnitHarbor FAQ
Common questions about the UnitHarbor unit converter.
What is UnitHarbor?
UnitHarbor is a lightning-fast unit converter built for speed, accuracy, and simplicity. It supports conversions for length, weight, temperature, currency, and more. It also includes smart tools like Recipe Scaling Calculator and Food Calories Tracker. Additionally, UnitHarbor features a comprehensive knowledge database with in-depth articles for learning and expanding your knowledge.
Is UnitHarbor free to use?
Yes, UnitHarbor is completely free to use. All basic conversion tools and calculators are available without any cost or registration required. We also offer Pro tools with advanced features for users who want even more functionality - these are available for a small fee.
What types of conversions does UnitHarbor support?
UnitHarbor supports a wide range of conversions including length (meters, feet, inches), weight (kilograms, pounds, ounces), temperature (Celsius, Fahrenheit, Kelvin), currency exchange rates, and more specialized tools like recipe scaling and calorie tracking.
Do I need an account to use UnitHarbor?
No. All converters, calculators, articles and the glossary work without signing up. An account is only needed if you want UnitHarbor Pro.
Can I add UnitHarbor to my own website?
Yes. UnitHarbor offers an embeddable converter widget and an API for developers.
Who makes UnitHarbor?
UnitHarbor is built by Tavvian, a brand of ENDRIANO-HANSEN DIGITAL in Norway. Questions or feedback: hello@tavvian.com.
Support
Questions or feedback? Email hello@tavvian.com.