public double Convert(String from, String to, double input) {
    // TODO Auto-generated method stub

    if ((from.equals(
            UnitConverter.getInstance()
                .getApplicationContext()
                .getResources()
                .getString(R.string.temperatureunitc))
        && to.equals(
            (UnitConverter.getInstance()
                .getApplicationContext()
                .getResources()
                .getString(R.string.temperatureunitf))))) {
      double ret = (double) ((input * 9 / 5) + 32);
      return ret;
    }

    if ((from.equals(
            UnitConverter.getInstance()
                .getApplicationContext()
                .getResources()
                .getString(R.string.temperatureunitf))
        && to.equals(
            (UnitConverter.getInstance()
                .getApplicationContext()
                .getResources()
                .getString(R.string.temperatureunitc))))) {
      double ret = (double) ((input - 32) * 5 / 9);
      return ret;
    }

    if (from.equals(to)) {
      return input;
    }
    return 0.0;
  }