verter(weightType, userVal) {

            userVal = parseFloat(userVal);

            var userFarad = document.getElementById("Farad");
            var usernF = document.getElementById("nF");
            var userpF = document.getElementById("pF");

            if (weightType == "Farad") {
                usernF.value = (userVal * 1000000000).toFixed();
                userpF.value = (userVal * 1000000000000).toFixed();
            }
            if (weightType == "nF") {
                userFarad.value = (u