Millimeters to Points

mm2points.c

int mm_to_points(double mm) {
    // 1 point = 1/72           inches
    // 1 inch  = 25.4           mm
    // 1 mm    = 1 / 25.4       inches
    // 1 inch  = 72             points
    // x mm    = x / 25.4 * 72  points
    return round(mm / 25.4 * 72);
}