OpticalEngineering app for iPhone and iPad

Welcome to OPTICAL ENGINEERING Calculator, an Engineering Calculators for Engineers and Students worldwide, This calculators for solving complex equations and formulas in the field of Civil Engineering.

The Calculators are listed Below:



* Calculation of Thermal Noise

* Mass Length

Centimeters to Feet
Feets to Centimeter
Inches to Centimeter
Centimeter to Inches
Millimeters to Inches
Inches to Millimeters
Centimeters to Yards
Yards to Centimeters
Meters to Feets
Feets to Meters
Meters to Yards
Yards to Meters
SQ.Centimeters to SQ. Feets
Sq Feet to Sq Centimeters
Sq Inches to Sq Centimeters
Sq Centimeters to Sq Inches
Kilograms to Pounds
Pounds to Kilograms.



* Laser Real-Time Unit Converter





* Pinhole Sizing Calculator

Depth of Camera: (from pinhole to film)

perture Diameter: (Leave value at 0 to use optimum)

Metered Aperture:

Metered Exposure Time:



* Concrete Tool

Concrete Calculator



* Slab Concrete Pour

Enter values of length, width and depth for each dimension which will result to display cubic yards for individual dimensions and total cubic yards.



* Spectra Library

Choose Substance name from select box and result will be displayed



* Temperature

Fahrenheit to Celsius
Celsius to Kelvin:
Celsius to Fahrenheit



* Periodic Table

Click on you wish to see values of chemical



* Ready Mix Concrete Volume

Enter values for the length, width & depth. Then click on the Calculate button. It will calculate the volume and the number of full loads of 6 cubic metre mixer trucks.


* Air Flow

Rectangle Duct

Circular Duct



* Pressure

Atmospheres to Feet of Water

Feet of Water to Atmospheres

Feet of Water to Inches of Mercury

Inches of Mercury to Feet of Water

Inches of Mercury to PSI

PSI to Inches of Mercury

Feet of Water to PSI

PSI to Feet of Water

PSI to Inches of Water

Inches of Water to PSI

KSC to PSI

Bars to PSI

PSI to Bars

PSI to KSC

Kilopascals to PSI

PSI to Kilopascals

KSM to Feet of Water

Feet of to KSM


* Speed-Distance-Time

Calculate Time from Distance and Speed

Calculate Distance from Speed and Time

Calculate Speed from Distance and Time


* Cantilever Beam

Cantilever Beam with Load at End





* beam Deflection Calculators.



Calculate Deflection for Solid Rectangular Beams
Calculate Deflection for Hollow Rectangular Beams
Calculate Deflection for Solid Round Beams
Calculate Deflection for Round Tube Beams