Bangalore Badami road distance is about 500km. There are two main road routes to Badami from Bangalore. The first is via Hospet (distance: 454km) and the second is via Hubli (distance: 510km)
Road Route 1 : Bangalore to Badami via Hubli( distance 510km ) : Bangalore -- 68km --> Tumkur Bypass --131km --> Chitradurga Bypass -- 58km --> Davangere -- 39km --> Ranebennur -- 35km --> Haveri -- 77km --> Hubli -- 60km --> Nargund -- 26km --> Kulageri Cross -- 20km --> Badami
Road Route 2 : Bangalore to Badami via Hospet ( distance 454km ) : Bangalore -- 68km --> Tumkur Bypass --131km --> Chitradurga Bypass --124km --> Hospet -- 63km --> Kushtagi -- 26km --> Gajendragad -- 8km --> Sudi -- 29km --> Banashankari Temple -- 5km --> Badami
The Hubli route is a bit longish, but it is 4 lane highway all the way from Bangalore up to Hubli (for about 400km on NH4) and then 2 lane NH and state roads from Hubli to Badami ( the last 100km).
From Hubli take diversion to NH218 towards Bijapur. At Kulageri Cross leave NH218 and take the right diversion to Badami Road.
The Hospet route is same till Chitradurga ( NH4 ), then take the diversion to NH13 towards Hospet. NH13 too is 4 lane, but with heavy traffic and varying road conditions, esp around the Hospet area. Take this route, if Hampi too is in your agenda. Don't miss to take the right diversion after Gajendragad take the right diversion. You can drive via Ron also.
On either routes, you'll need plan for about 10-11 hours of drive Bangalore to Badami route by road.
You may also want to explore Bangalore to Badami by bus or even Bangalore to Badami trains.
Badami , located about 22 km (14 miles) southwest of Pattadakal is the nearest railway station for Pattadakal. Badami (Station Code:BDM ) itself is on the less busy Solapur-Gadag route. This means, there are not many long distance trains connect Badami directly with other metro cities in the region. However there are a few convenient express and local train connections for Badami.
Pattadakal (Pattadakallu in local language ) in the Indian state of Karnataka is renowned for the group of the 8th century CE monuments. Pattadakal is a UNESCO World Heritage Site.