Online unit converters Calc1.ru
Online converters Calc1.ru are a complete set of tools for accurate conversion of all basic units of measurement. Our converters allow you to instantly convert between different units of length, weight, temperature, speed, pressure, volume, energy and data.
All converters use accurate international standards and conversion factors. Metric, imperial and other measurement systems are supported. Calculations are performed instantly with an accuracy of 15 decimal places. All tools are completely free and available without registration.
Advantages of our converters
Our unit converters offer many benefits to users:
Accurate calculations
All converters use accurate international standards and conversion factors. Calculations are based on official values approved by metrological organizations.
Instant conversion
All conversions are performed instantly in real time as you enter values. There is no need to wait for results to be processed or downloaded.
Many units
Each converter supports all major units of measurement in its category. You can convert between metric, imperial and other measurement systems.
Multilingual interface
Converters are available in 4 languages: Russian, English, Spanish and German. The interface automatically adapts to the selected language.
Mobile version
All converters are fully adapted to work on mobile devices, tablets and smartphones. The interface is optimized for easy use on any device.
Free and no registration required
All converters are completely free and available without registration. You can use them an unlimited number of times with no hidden fees or restrictions.
Useful tips
To get the most out of unit converters:
Check units of measurement
Always ensure that you have selected the correct units for the input value and the result. Please note the metric and imperial systems.
Use exact values
For scientific and professional calculations, use exact values. Converters support values up to 15 decimal places.
Be mindful of measurement systems
Different countries use different measurement systems (metric, imperial, American). Make sure you are using the right system for your task.
Check the results
For critical calculations, it is recommended to check the conversion results, especially when working with unfamiliar units of measurement.
Available calculators
Online length converter
Quickly convert units of length: millimeters, centimeters, meters, kilometers and miles. Accurate and convenient converter.
Online weight converter
Quickly convert weight units: grams, kilograms and pounds. Accurate and convenient converter.
Online temperature converter
Quickly convert temperatures between Celsius, Fahrenheit and Kelvin. Accurate and convenient converter.
Online speed converter
Quickly convert speed between km/h, m/s and knots. Accurate and convenient converter.
Online pressure converter
Quickly convert pressure between Pascals, atmospheres and millimeters of mercury. Accurate and convenient converter.
Online volume converter
Quickly convert volume between liters, gallons and cubic meters. Accurate and convenient converter.
Online energy converter
Quickly convert energy between Joules, calories and watt-hours. Accurate and convenient converter.
Online data converter
Quickly convert data between bytes, kilobytes, megabytes, gigabytes and terabytes. Accurate and convenient converter.
Online angle converter
Quickly convert angles between degrees, radians and revolutions. Accurate and convenient converter.
Frequently Asked Questions
What units of measurement do converters support?
Converters support all major units of measurement in each category: length (mm, cm, m, km, miles), weight (g, kg, lb), temperature (°C, °F, K), speed (km/h, m/s, knots), pressure (Pa, atm, mmHg), volume (l, gallons, m³), energy (J, cal, Wh), data (bytes, KB, MB, GB, TB).
Are converter calculations accurate?
Yes, all converters use accurate international standards and conversion factors. Calculations are based on official values approved by metrological organizations. The calculation accuracy is up to 15 decimal places.
Are converters free?
Yes, all unit converters on Calc1.ru are completely free. You can use them an unlimited number of times without registration or hidden fees.
How to convert length units?
Select the length converter, enter the value in the source units (for example, meters) and select the target unit (for example, kilometers). The converter will instantly show the result.
How to convert weight units?
Use the weight converter to enter the value in grams, kilograms or pounds. The converter will convert the value to your chosen unit of measurement.
How to convert temperature?
In the temperature converter, enter the value in Celsius, Fahrenheit or Kelvin. The converter will automatically convert the value to all other scales.
How to convert speed?
In the speed converter, enter the value in km/h, m/s or knots. The converter will instantly show the equivalent value in other speed units.
How to convert pressure?
In the pressure converter, enter the value in Pascals, atmospheres or millimeters of mercury. The converter will convert the value to the selected unit.
How to convert volume?
Use the volume converter to convert liters, gallons and cubic meters. Enter a value in one unit and the converter will show the equivalent in others.
How to convert energy?
In the energy converter, enter the value in Joules, calories or watt hours. The converter will convert the value between all energy units.