The commune of Nantua has an area of 12.8 km² (4.9 sq mi).
Its average altitude is 776 m (2,546 ft); at the city hall, the altitude is 478 m (1,568 ft).

The distances from Nantua to other cities are:
Paris, the national capital - 480 km (300 mi);
Lyon, the regional capital - 90 km (56 mi);
Reims - 488 km (303 mi);
Bordeaux - 639 km (397 mi);
Toulouse - 627 km (390 mi);
Montpellier - 388 km (241 mi);
Strasbourg - 460 km (290 mi);
Nantes - 720 km (450 mi);
Marseille - 403 km (250 mi).
The commune of Nantua has an area of 12.8 km² (4.9 sq mi). Its average altitude is 776 m (2,546 ft); at the city hall, the altitude is 478 m (1,568 ft).
The distances from Nantua to other cities are:
Paris, the national capital - 480 km (300 mi);
Lyon, the regional capital - 90 km (56 mi);
Reims - 488 km (303 mi);
Bordeaux - 639 km (397 mi);
Toulouse - 627 km (390 mi);
Montpellier - 388 km (241 mi);
Strasbourg - 460 km (290 mi);
Nantes - 720 km (450 mi);
Marseille - 403 km (250 mi).
Nantua