As of May 2010, the township had a total of 51.25 miles (82.48 km) of roadways, of which 31.08 miles (50.02 km) were maintained by the municipality, 12.85 miles (20.68 km) by Middlesex County and 3.16 miles (5.09 km) by the New Jersey Department of Transportation and 4.16 miles (6.69 km) by the New Jersey Turnpike Authority.

Several major roads and highways pass through the township Cranbury hosts a 4-mile (6.4 km) section of Interstate 95 (the New Jersey Turnpike).
While there are no exits in Cranbury, the township is accessible by the Turnpike in neighboring East Windsor Township (Exit 8) and Monroe Township (Exit 8A).
The Molly Pitcher Service Area is located at mile marker 71.7 on the southbound side.

Other significant roads passing through Cranbury include U.S. Route 130, County Route 535, County Route 539, County Route 615 and County Route 614.
As of May 2010, the township had a total of 51.25 miles (82.48 km) of roadways, of which 31.08 miles (50.02 km) were maintained by the municipality, 12.85 miles (20.68 km) by Middlesex County and 3.16 miles (5.09 km) by the New Jersey Department of Transportation and 4.16 miles (6.69 km) by the New Jersey Turnpike Authority.
Several major roads and highways pass through the township Cranbury hosts a 4-mile (6.4 km) section of Interstate 95 (the New Jersey Turnpike). While there are no exits in Cranbury, the township is accessible by the Turnpike in neighboring East Windsor Township (Exit 8) and Monroe Township (Exit 8A). The Molly Pitcher Service Area is located at mile marker 71.7 on the southbound side.
Other significant roads passing through Cranbury include U.S. Route 130, County Route 535, County Route 539, County Route 615 and County Route 614.
Cranbury, New Jersey