sum Calculators and Converters

Credit Card Number Validator is a free utility to help you check validity of a credit card number. Credit Card Number Validator verifies credit card numbers right on your PC without going on-line or transmitting sensitive information from your PC. Credit Card Number Validator uses LUHN formula (Mod 10) for validation of primary account number. The tool can only validates the integrity of the number combination, not the credit card itself.

Tags: credit card, card number verifier, validate, validator, mod10, mod 10, credit card checksum, debit card check sum, LUHN10, card numbers

TimePuter is a time/date calculator with many related features. One can calculate time periods or date/time using start date/time or time period duration as input. Calculate time periods based on the start and final dates along with the sum/difference calculation of the start time/date and input data. Exclude time period form calculation. It allows you predict money growth on your accounts. Export results Html, xml or txt files with an ease.

Tags: time, calculate, calculator, evaluate, evaluator, sum, difference, leap, download, timecalc