rough estimate

Rough estimates of the industry cost run beyond $200 million.

That should give you a rough estimate of the costs.

He ran some rough estimates on his board, looked at the results.

By a rough estimate, maybe half a foot per hour.

Since then the government has only published rough estimates of the population.

It may take four to six weeks, but that's just a rough estimate.

The first rough estimates for the construction were around $250,000.

It would take quite a bit of work to complete that project, and at the end all you'd have is a rough estimate.

The search area has been based on a rough estimate of where Plant might be.

The £60bn comes from a rough Russian estimate of $100bn.