| Euclid to Redondela | 3,624.80 mi (5,833.55 km) |
| Euclid to Reinosa | 3,806.68 mi (6,126.26 km) |
| Euclid to Requena | 4,061.90 mi (6,537.00 km) |
| Euclid to Reus | 4,103.85 mi (6,604.51 km) |
| Euclid to Rianxo | 3,604.70 mi (5,801.20 km) |
| Euclid to Ribadeo | 3,659.50 mi (5,889.40 km) |
| Euclid to Rincon de la Victoria | 4,010.21 mi (6,453.80 km) |
| Euclid to Ripoll | 4,115.33 mi (6,622.98 km) |
| Euclid to Ripollet | 4,138.64 mi (6,660.49 km) |
| Euclid to Rojales | 4,128.91 mi (6,644.84 km) |
| Euclid to Ronda | 3,967.46 mi (6,385.00 km) |
| Euclid to Roquetas de Mar | 4,087.72 mi (6,578.55 km) |
| Euclid to Rosas | 4,156.48 mi (6,689.21 km) |
| Euclid to Rubi | 4,133.21 mi (6,651.76 km) |
| Euclid to Rute | 3,985.18 mi (6,413.53 km) |
