This is an irregular verb. It follows the conjugation pattern of the verb pedir.
Stem Change: e i (mido)
Gerund: midiendo
PresentPresente
Mi hermano mide dos metros.
My brother is two meters tall.
PreteritePretérito indefinido
El carpintero midió la puerta dos veces.
The carpenter measured the door twice.
ImperativeImperativo afirmativo
Mide la mesa antes de comprar el mantel.
Measure the table before buying the tablecloth.