Distance between cities › Australia › South Australia › Hynam, SA › Distance from Hynam to Williamstown Book Hotels

Distance from Hynam, SA to Williamstown, SA

Distance

343 km

Time

4 hours 18 mins

Gas Cost

$26 - $67

There are 308.97 km (191.98 miles) from Hynam to Williamstown in northwest direction and 342.79 km (213 miles) by car, following the A66 route.

Hynam and Williamstown are 4 hours 18 mins far apart, if you drive non-stop .

This is the fastest route from Hynam, SA to Williamstown, SA.

Hynam, SA and Williamstown, SA are in the same time zone (ACST). Current time in both locations is 1:50 am.

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Lowest Price Rental Cars in Hynam, SA

Planning on renting a car to go from Hynam, SA to Williamstown, SA? Here there are some offers to rent a car in Hynam, SA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Hynam »

Gas Consumption and Emissions

A car with a fuel efficiency of 10.8 l/100 km will need 37.02 liters of fuel to cover the route between Hynam, SA and Williamstown, SA.

The estimated cost of fuel to go from Hynam to Williamstown is $55.52.

During the route, an average car will release 885.43 kilograms of CO₂ to the atmosphere. The carbon footprint would be 2.58 kilograms of CO₂ per kilometer.

Average Australia gas price used for calculation is $1.50 per liter of regular gas. Price last updated on March 10, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Hynam, SA and Williamstown, SA

If you want to meet halfway between Hynam, SA and Williamstown, SA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are -35.797501 and 139.944931, or 35º 47' 51.0036" S, 139º 56' 41.7516" E. This location is 106.49 miles away from Hynam, SA and Williamstown, SA and it would take approximately 2 hours 9 mins to reach the halfway point from both locations.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Hynam, SA and Williamstown, SA in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	191.98 mi	308.97 km	166.83 nautical mi
Driving distance	213 mi	342.75 km	185.07 nautical mi

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