The phrase "allows the amount of" is correct and usable in written English.
It can be used when discussing the capacity or extent of something that is permitted or enabled by a particular factor or condition.
Example: "The new software update allows the amount of data processed to increase significantly."
Alternatives: "permits the quantity of" or "enables the level of".
Some drugs can inhibit metabolism, which allows the amount of the drug to accumulate in the system, leading to potential toxicity if the dose is not decreased.
To mute this embarrassing possibility a novel provision in the prospectus allows the amount of shares issued to be expanded not once, which is common, but twice.
The technology of electronic funds transfer, supported by computer networking, allows the amount of a grocery bill to be immediately deducted from the customer's bank account and transferred to that of the grocery store.
Next, the neutron excess concept from previous studies of B&B reactors is extended to apply to linear-assembly B&B reactors, which allows the amount of starter fuel needed to establish a given equilibrium cycle to be calculated.
Quick-response hydro allows the amount of water sent through the turbines to be changed on short notice.
The flexibility of grouping energy in classes allows the amount of data to be reduced, i.e. reducing the computational burden.
He essentially says that as Fed chairman, Mr. Greenspan was wrong to allow the amount of deregulation he did.
Even before the increase in regional service was allowed, loopholes in the flight restrictions allowed the amount of air traffic, and crowding, to increase.
But once the talks opened last Thursday, North Korea made clear its unhappiness with allowing the amount of oil to be determined by a working group.
"The city did a tremendous disservice to this neighborhood by turning around and allowing the amount of development that it did," he said.
Once again, the district valuer queried these figures, suggesting a review mechanism be put in place to allow the amount of affordable housing to increase if sales turned out better than predicted.
