England booked their place in the final of the Women's World Twenty20 with a comfortable nine-wicket win over South Africa in Dhaka.

Charlotte Edwards' side will battle it out for the title on Sunday with Australia, who beat England in the last World Twenty20 final in Sri Lanka two years ago by four runs.

They also lost their last two matches against the old enemy in the shortest format during the winter's Ashes series Down Under.

England had, however, already sewn up the multi-format series at that stage after easily winning the opening Twenty20 in Hobart.

And the dominant performance yesteday puts England in a good position going into the final.

"This gives us confidence going into the next game," said Edwards.

"The batters are batting well and the bowlers have been exceptional all tournament. It was more of the same today.

"The team played exceptionally well - it's the kind of performance you want in a semi-final.

"We want to keep that going now and keep that momentum. It's all about putting that big performance in now on Sunday."

A record-equalling five run-outs contributed to South Africa's demise as they were bowled out for 101.

England coasted to the target in 16.5 overs, with opener Sarah Taylor unbeaten on 44 from 45 balls.

Edwards added 36 before Heather Knight helped complete a routine chase with 21 not out.

Player of the match Anya Shrubsole was the pick of England's bowlers with two for 12 while Rebecca Grundy claimed two for 22.

Edwards added: "Anya was exceptional up front. She's been brilliant, as she has been for the past 12 months. How she is performing is no surprise."

The Somerset seamer has now taken 12 wickets this tournament, which is the most, and was once again brilliant against South Africa.

"The best way to stop the runs is to take wickets, particularly in the first six overs," said Shrubsole.

"I've been around long enough now to be able to step up.

"We're working really well as a bowling unit and hopefully that can continue into the final."

South Africa's poor running between the wickets ultimately ruined any hopes they had of upsetting England, who have now reached a third Twenty20 final.

But Edwards was keen to deny that the final would be about revenge.

"No, not at all. Everyone is saying it is about revenge but it's not at all," Edwards added.

"We are preparing ourselves now for a good performance and if we do that we're quite capable of winning."