Reply To: How can I convert Woo Commerce checkout fields to display in capital letters?

Hello,

Please add this code to the Theme Settings > Custom CSS > Global:

.woocommerce-checkout .woocommerce-shipping-fields h3 span{
text-transform: capitalize;
}
.woocommerce-checkout .woocommerce-billing-fields h3{
text-transform: capitalize;
}
body table th {
    text-transform: capitalize;
}

Best Regards