Free online web browser based tools to assist with your engineering, scientific, education, business or everyday complex calculation tasks.
Pressure Level Temperature Electrical Flow Force Mass Dimensions Density Time Speed Energy Sensors Shapes Motion Travel Price Chemical HealthUnit Converters
A comprehensive set of unit conversion tools for converting measurement values into different engineering units.
- Acceleration Converter
- Amount Of Substance Converter
- Area Converter
- Area Density Converter
- Cooking Measurements Converter
- Density Converter
- Depth Converter
- Distance Converter
- Energy Converter
- Everyday Measurements Converter
- Force Converter
- Frequency Converter
- Heat Capacity Converter
- Height Converter
- Leak Rate Converter
- Length Converter
- Linear Mass Density Converter
- Mass Converter
- Mass Flow Rate Converter
- Molality Converter
- Molar Heat Capacity Converter
- Molar Mass Converter
- Molar Volume Converter
- Molarity Converter
- Power Converter
- Pressure Converter
- Specific Heat Capacity Converter
- Speed Converter
- Temperature Coefficient Converter
- Temperature Converter
- Temperature Difference Converter
- Time Period Converter
- Time Period Multi-Unit Converter
- Torque Converter
- US/Imperial & Metric Units Converter
- Vehicle Fuel Consumption Converter
- Vehicle Fuel Economy Converter
- Volume Converter
- Volume Flow Rate Converter
- Volumetric Heat Capacity Converter
- Weight Converter
- Width Converter
Pressure
Tools for converting and calculating pressure.
- Elevation, Station (QFE) and Sea Level (QNH) Pressure Calculator
- Fluid Depth, Density, Gravity, and Pressure Calculator
- Force & Area to Pressure Calculator
- Gauge + Barometric to Absolute Pressure Calculator
- High and Low Side Pressure to Differential Pressure Calculator
- ICAO Standard Atmosphere Altitude and Pressure Calculator
- Liquid Level to Hydrostatic Pressure Calculator
- Piston Cylinder Force and Diameter to Pressure Calculator
- Pressure Converter
- Pressure Measurement Accuracy and Error Calculator
- Pressure Sensing Errors Calculator
- Pressure Sensor Calculator
- Suction Pressure to Vacuum Calculator
- US Standard Atmosphere Altitude and Pressure Calculator
Liquid Level
Tools for converting and calculating liquid depth and level.
- Fluid Depth, Density, Gravity, and Pressure Calculator
- Horizontal Cylindrical Shaped Tank Contents Calculator
- Pressure to Liquid Level Calculator
- Rectangular Shaped Tank Contents Calculator
- Tank Height – Tank Level Depth to Tank Level Height Calculator
- Vertical Cylindrical Shaped Tank Contents Calculator
- Well Depth – Water Level Depth to Water Level Height Calculator
Temperature & Heat
Tools for calculating temperature and heat measurement parameters.
- Area Thermal Expansion Calculator
- Avogadro’s Law Calculator
- Boyle’s Law Calculator
- Charles’ Law Calculator
- Combined Gas Law Calculator
- Gay-Lussac’s Law Calculator
- Heat Capacity & Amount Of Substance to Molar Heat Capacity Calculator
- Heat Capacity & Total Mass to Specific Heat Capacity Calculator
- Heat Capacity & Total Volume to Volumetric Heat Capacity Calculator
- Heat Capacity Converter
- Heat Transferred & Temperature Change to Heat Capacity Calculator
- Ideal Gas Law Calculator
- Length, Area and Volume Isotropic Thermal Expansion Calculator
- Linear Thermal Expansion Calculator
- Molar Heat Capacity Converter
- Specific Heat Capacity Calculator
- Specific Heat Capacity Converter
- Temperature Coefficient Converter
- Temperature Converter
- Temperature Difference Calculator
- Temperature Difference Converter
- Temperature Sensor Calculator
- Temperature, TCR Coefficient and Electrical Resistance Change Calculator
- Volumetric Heat Capacity Converter
- Volumetric Thermal Expansion Calculator
Electrical & Electromagnetic
Tools for calculating electrical or electromagnetic measurement parameters.
- Current & Electrical Resistance to DC Power Calculator
- Distance to Time Delay Calculator for Electromagnetic Waves in a Vacuum
- Frequency to Photon Energy Calculator for Electromagnetic Waves
- Frequency to Wavelength Calculator for Electromagnetic Waves in a Vacuum
- Temperature, TCR Coefficient and Electrical Resistance Change Calculator
- Voltage & Current to DC Electrical Resistance Calculator
- Voltage & Current to DC Power Calculator
- Voltage & Electrical Resistance to DC Power Calculator
- Wavelength to Frequency Calculator for Electromagnetic Waves in a Vacuum
- Wavelength to Photon Energy Calculator for Electromagnetic Waves in a Vacuum
Flow
Tools for converting and calculating flow rates.
- Flow Velocity & Area to Flow Rate Calculator
- Flow Velocity & Pipe Diameter to Volumetric Flow Rate Calculator
- Flow Velocity & Rectangular Duct Width x Height to Volumetric Flow Rate Calculator
- Leak Rate Calculator
- Leak Rate Converter
- Mass Flow & Density to Volume Flow Calculator
- Mass Flow Rate Converter
- Total Mass & Total Time to Flow Rate Calculator
- Total Volume & Total Time to Flow Rate Calculator
- Volume Flow & Density to Mass Flow Calculator
- Volume Flow Rate Converter
Force, Load & Torque
Tools for converting and calculating force, load or torque.
- Force & Area to Force per Unit Area Calculator
- Force and Lever Arm Length to Torque Calculator
- Force Converter
- Force per Unit Area Converter
- Mass & Acceleration to Force Calculator
- Mass to Weight Calculator
- Newton’s Universal Gravitation Calculator
- Push Pull Hydraulic Cylinder Pressure, Diameter and Force Calculator
- Torque Converter
- Two Connected Hydraulic Cylinders Force, Diameter and Displacement Calculator
Mass & Weight
Tools for converting and calculating mass or weight.
- Delivery Service Volumetric Weight Calculator
- Gross – Tare to Net Weight Calculator
- Mass Converter
- Molality Converter
- Molar Mass Converter
- Pounds and Ounces (lb oz) to Single Unit Weight Converter
- Single Unit Weight to Pounds and Ounces (lb oz) Converter
- Single Unit Weight to Stones and Pounds (st lb) Converter
- Stones and Pounds (st lb) to Single Unit Weight Converter
- Weight Converter
Length & Distance
Tools for converting and calculating length, width, height, depth or distance.
- Depth Converter
- Distance Converter
- Elevation, Station (QFE) and Sea Level (QNH) Pressure Calculator
- Feet and Inches (ft in, ′ ″) to Single Unit Height Converter
- Feet and Inches (ft in, ′ ″) to Single Unit Length Converter
- Feet and Inches (ft in, ′ ″) to Single Unit Width Converter
- Height Converter
- ICAO Standard Atmosphere Altitude and Pressure Calculator
- Length Converter
- Length, Area and Volume Isotropic Thermal Expansion Calculator
- Linear Thermal Expansion Calculator
- Single Unit Height to Feet and Inches (ft in, ′ ″) Converter
- Single Unit Length to Feet and Inches (ft in, ′ ″) Converter
- Single Unit Width to Feet and Inches (ft in, ′ ″) Converter
- US Standard Atmosphere Altitude and Pressure Calculator
- Width Converter
Area
Tools for converting and calculating the area of objects, spaces or cross-sections.
- Area Converter
- Area Thermal Expansion Calculator
- Diameter to Area of Circle Calculator
- Diameter to Surface Area of Sphere Calculator
- Length & Width to Area Calculator
- Length, Area and Volume Isotropic Thermal Expansion Calculator
- Radius to Area of Circle Calculator
- Radius to Surface Area of Sphere Calculator
- Room Floor, Walls and Ceiling Area Calculator
Volumetric
Tools for converting and calculating the volume of a 3D space, object or substance.
- Delivery Service Volumetric Weight Calculator
- Diameter to Volume of Sphere Calculator
- Horizontal Cylindrical Shaped Tank Contents Calculator
- Length & Diameter to Volume of Cylinder Calculator
- Length, Area and Volume Isotropic Thermal Expansion Calculator
- Length, Width & Height to Volume Calculator
- Molar Volume Converter
- Molarity Converter
- Radius to Volume of Sphere Calculator
- Rectangular Shaped Tank Contents Calculator
- Vertical Cylindrical Shaped Tank Contents Calculator
- Volume Converter
- Volumetric Thermal Expansion Calculator
Density
Tools for converting and calculating density.
Time & Frequency
Tools for converting and calculating time or frequency.
- Distance to Time Delay Calculator for Electromagnetic Waves in a Vacuum
- Frequency Converter
- Frequency to Period Calculator
- Land Area & Machine Width & Speed to Coverage Time Calculator
- Period to Frequency Calculator
- Time Period Converter
- Time Period Multi-Unit Converter
- Wavelength to Frequency Calculator for Electromagnetic Waves in a Vacuum
Speed & Acceleration
Tools for converting and calculating speed or acceleration.
Energy & Power
Tools for converting and calculating energy and power.
- Battery Energy Used & Distance Travelled to Electric Vehicle Consumption Calculator
- Einstein’s Mass-Energy Equivalence Calculator
- Energy Converter
- Force & Velocity to Power Calculator
- Force Applied & Distance Moved to Work Done Calculator
- Frequency to Photon Energy Calculator for Electromagnetic Waves
- Mass & Velocity to Kinetic Energy Calculator
- Power Converter
- Wavelength to Photon Energy Calculator for Electromagnetic Waves in a Vacuum
- Work Done & Elapsed Time to Power Calculator
Sensors & Instrumentation
Tools for converting and calculating input and output signal values of sensor and instrumentation devices.
- 0-10V Signal to Measurement Reading Converter
- 0-20mA Signal to Measurement Reading Converter
- 0-5V Signal to Measurement Reading Converter
- 0.5-4.5V Signal to Measurement Reading Converter
- 1-5V Signal to Measurement Reading Converter
- 4 to 20 mA Supply, Load, Shunt and Signal Calculator
- 4-20mA Signal to Measurement Reading Converter
- Bit to Measurement Resolution Converter
- Calibration Error Calculator
- DP Flow Transmitter Output Calculator
- Flow Transmitter 4-20mA Current Output Calculator
- Input to Output Measurement Reading Converter
- Linear Input to Square Root Extraction Output Converter
- Liquid Level Transmitter 4-20mA Current Output Calculator
- Load Cell Millivolt (mV) Output Calculator
- Measurement to Digital Reading Converter
- Pressure Measurement Accuracy and Error Calculator
- Pressure Sensing Errors Calculator
- Pressure Sensor Calculator
- Pressure Transducer 0-10V Voltage Output Calculator
- Pressure Transducer 0-5V Voltage Output Calculator
- Pressure Transducer 0.5-4.5V Voltage Output Calculator
- Pressure Transducer 1-5V Voltage Output Calculator
- Pressure Transducer Millivolt (mV) Output Calculator
- Pressure Transmitter 0-20mA Current Output Calculator
- Pressure Transmitter 4-20mA Current Output Calculator
- Ratiometric mV/V Signal to Measurement Converter
- Ratiometric V/V Signal to Measurement Converter
- SqRt Extraction 4-20mA Signal to Measurement Reading Converter
- Square Root Extraction Input to Linear Output Converter
- Strain Gauge Transducer Millivolt (mV) Output Calculator
- Temperature Sensor Calculator
- Temperature Transmitter 4-20mA Current Output Calculator
- Torque Transducer Millivolt (mV) Output Calculator
Circular Shapes
Tools for converting and calculating radius, diameter, circumference, area and volume of circular, spherical and cylindrical shaped objects and spaces.
- Box and Cylinder Dimensions with Same Volume Calculator
- Box and Sphere Dimensions with Same Volume Calculator
- Cylinder and Sphere Dimensions with Same Volume Calculator
- Diameter to Area of Circle Calculator
- Diameter to Circumference of Circle Calculator
- Diameter to Radius of Circle Calculator
- Diameter to Surface Area of Sphere Calculator
- Diameter to Volume of Sphere Calculator
- Horizontal Cylindrical Shaped Tank Contents Calculator
- Length & Diameter to Volume of Cylinder Calculator
- Radius to Area of Circle Calculator
- Radius to Circumference of Circle Calculator
- Radius to Surface Area of Sphere Calculator
- Radius to Volume of Sphere Calculator
- Two Cylinders Dimensions with Equal Volume Calculator
- Vertical Cylindrical Shaped Tank Contents Calculator
Rectangular Shapes
Tools for converting and calculating length, width, height, area and volume of 2 and 3 dimensional rectangular shaped objects and spaces.
- Box and Cylinder Dimensions with Same Volume Calculator
- Box and Sphere Dimensions with Same Volume Calculator
- Delivery Service Volumetric Weight Calculator
- Length & Width to Area Calculator
- Length, Width & Height to Volume Calculator
- Rectangular Shaped Tank Contents Calculator
- Two Boxes Dimensions with Equal Volume Calculator
Movement & Motion
Tools for converting and calculating parameters associated with the movement and motion of physical objects.
Travel & Transportation
Tools for converting and calculating parameters associated with travel and transportation performance, such as fuel economy, journey times or distances.
- Distance and Time Taken to Average Speed Calculator
- Distance Travelled & Battery Energy Used to Electric Vehicle Economy Calculator
- Distance Travelled & Fuel Volume Used to Fuel Economy Calculator
- Elevation, Station (QFE) and Sea Level (QNH) Pressure Calculator
- Fuel Volume Used & Distance Travelled to Motor Vehicle Fuel Consumption Calculator
- ICAO Standard Atmosphere Altitude and Pressure Calculator
- Speed Converter
- US Standard Atmosphere Altitude and Pressure Calculator
- Vehicle Fuel Consumption Converter
- Vehicle Fuel Consumption to Economy Calculator
- Vehicle Fuel Economy Converter
- Vehicle Fuel Economy to Consumption Calculator
Pricing & Quantities
Tools for converting and calculating prices and quantities for material, product, time or space.
- Area total and Amount per unit area to Amount total Calculator
- Cost and Markup to Selling Price Calculator
- Cost and Profit Margin to Selling Price Calculator
- Item Price and Quantity to Total Price Calculator
- Length total and Amount per unit length to Amount total Calculator
- Length x Width and Amount per unit area to Amount total Calculator
- Net Price and % Tax Rate to Gross Price Calculator
- Original Price and % Discount to Reduced Price Calculator
- Percentage Calculator
- Price A, and A⇒B Exchange Rate to Price B Calculator
- Time total and Amount per unit time to Amount total Calculator
- Universal Amount per unit of Area Converter
- Universal Amount per unit of Length Converter
- Universal Amount per unit of Time Converter
- Universal Amount per unit of Volume Converter
- Universal Amount per unit of Weight Converter
- Volume total and Amount per unit volume to Amount total Calculator
- Weight total and Amount per unit weight to Amount total Calculator
Chemical Quantities
Tools for converting and calculating chemical quantities.
Health & Fitness
Tools for converting and calculating health and fitness parameters.