There are precisely 0.0254 meters in one inch. That is a hard number to remember! Test your friends and see if anybody else can answer this question!
http://www.ask.com/webanswers/Reference/Other/how...

1 square meter = 1,550 square inches.
http://wiki.answers.com/Q/How+many+inches+make+a+s...

1. Use this conversion formula: One square meter is equal to 10.76 square feet. Multiply the given number of square meters by 10.76 to find the number of square feet. For example,
http://www.ehow.com/how_6307423_convertmeterssqu...

1 square inch = 645.16 square millimeters. Thanks, have a great day!
http://www.chacha.com/question/howmanysquaremil...
