Free length calculation software for windows

The Filmcalculator is a program for people working in the film business. It is mainly useful for D.O.P.s, camera-operators, assistants, clapperloaders and gaffers but also for still photographers and video cameramen.
Primarily developed as a personal tool, the Filmcalculator has grown to a professional program with users world wide. Distribution as shareware makes it legal to make copies for colleagues and gives everybody the opportunity to try the program and decide if they like it before actually buying it.
Filmcalculator is a software that helps with calculations needed while planning or shooting a production.
Main features:
Optical calculations:
- Depth of field
- Splitfocus
- Focal length to lens angle
- Lens angle to focal length
Macro calculations:
- Magnification factor
- Needed diopter
- Needed Split diopter
- Scale/Model/SFX
- Event and screen time to frame rate
- Stop motion counter
- Screen time to frames
- Recommended camera spreed for miniatures
Distance/Size calculations
- Distance and object size to focal length
- Focal length and object size to distance
- Distance and focal length to object size
- Matching lens and distance
- Matching lens and format
Filmlength/time calculations
- Time to filmlength
- Shooting time to screen time
- Rollsize to filmlength
- Filmlength to time
- Filmstock counter
- Timecode calculator
Lamp and lighting calculations
- HMI flickerfree speeds and shutter angles
- Beam angle/distance/width conversion
- Illumination calculations
- User adjustable lamp tables
- Color correction
Exposure calculations
- Exposure corrections for speed and shutter angle
- Exposure changes replacing lights
Electricity calculations
- Watts/Volts/Amps/Ohms calculations
- Power cable calculations
- Generator calculations
- General
- Sun set/rise and positions
- Sun mapping / listing
- Moon positions / phases
- Info about filters/filmstock/apertures
- And more.......

Convert from the U.S. customary units of length (inch, foot, miles, yard), into metric units.
Length Convertor widget lets you calculate and convert the main units of lenght.
Now you can easilly convert very quick the main units of lenght, one into another.

Work Time is a simple program that makes it easier for the user to figure out your work time for the day; it displays remaining work time based on start time, ending time, and hours worked in a time.
Based on the time you arrived, lunch length, overtime and length of your work day the program will tell you when to go home and how much time you have left.
Simple, I know, but its something I use all the time. By the end of the day some of us just cant add time in our heads!
Main features:
- Options for overtime, work day length, start time, end time.
- Automatically saves last settings
- Almost any field can be changed. Calculations are performed automatically!

Data Doctor Length and Area Converter software converts length area unit in other available units and calculates total cost of buying, selling and purchasing properties. Calculator supports very large size of property length and area unit conversion. Utility provides correct and exact price of property of any desired unit. Software changes the unit of length to and from picas, astronomical units, geographical miles, chains(engineer), admiralty angstroms, miles, cubits(roman), (common), (greeks), micrometers, mils, fathoms, feet(US survey), irish miles, hands, leagues(US), (US land), (US sea), links(engineer), pouces, microns, roman feet(pedes), pieds de roi, thous, nautical miles(international), (telegraph), (UK), (US), nanometers, points, roman miles(milia passuum), unciac(roman inches), shackles(12.5 fathoms), (15 fathoms), furlongs and scottish miles. Tool transforms the unit of area to and from square millimeter, poles, feets, centimeters, inches, chains, meters, kilometers, rods, links, yards, tatami(Jo), tsubo dunams, townships, ping, roods, sections, acres, hectares, pyong, ares and perches for the purpose of fast growing business and speed up of real estate sell purchase dealing. Calculator supports realtor to changes unit of residential and commercial houses, shops, lands, plots, flats length and area. Features: * Provides read only and non-destructive user friendly graphical user interface GUI. * Utility provide precise and accurate price of property of any selected unit. * Software helps to speed up your real estate sell purchase business. * Converts all available units in other units very quickly. * Calculator provides efficient and useful conversion facilitates to accelerate your property related dealings. * Tool provides calculation facilities on Windows 98, NT, ME, 2000, 2003, XP and Windows XP media center.