How far is SW Houston to Tomball or Mongolia?|175857

I am planning on meeting someone in Tomball or Mongolia to buy a Macbook, but I am not sure that my parents will drive me, depending on how far it is from Harris County/SW houston to Tomball or Mongolia.
So does anyone know in minutes, how long it would take me to get from SW Houston to Tomball and Mongolia.
Thanks.

Just don_t do it during rush hour, and you_ll be fine. Should take under an hour to Tomball, and a little over an hour to Magnolia.

About an hour in medium/low traffic today.
Try yahoo maps.