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archCalc is a mixed unit decimal and fraction calculator.

Freeware cryptographic hash and crc value calculator for md5, crc32, sha-1, etc.

tiny calculator.

Gordian Knot started out as a simple bitrate calculator for DivX encoding

Stock market timing calculator based on Dow theory and the Fibonacci principle.

The GasDandy gas mileage calculator records important data.

StockMonkey - Stocks and shares calculator

MB Free Nakshatra is a nakshatra calculator software based on Vedic Astrology.

MyCalculator is a free scientific calculator

Accurate, profressional pregnancy calculator used by real docters and nurses.