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* UK inflation doubles to 1.5% in April

* Ferguson hits record high after Q3 results

* John Laing tops FTSE 250 as KKR to buy co for $2.84 bln

* FTSE 100 down 1.2%, FTSE 250 off 0.4%

May 19 (Reuters) - London's FTSE 100 fell on Wednesday, dragged down by heavyweight commodity stocks, while a bigger-than-expected jump in inflation stoked fears the central bank may tighten its monetary policy earlier than expected.

The blue-chip index fell 1.2%, with miners declining 3.9% after metal prices slipped. Oil majors BP and Royal Dutch Shell slid more than 1% each.

The domestically focussed mid-cap FTSE 250 index fell 0.4%.

Official figures showed British consumer price inflation more than doubled in April to 1.5%. The Bank of England hopes the surge in inflation will be temporary as the economy recovers from last year's COVID-19 slump.

A jump in regulated electricity and gas bills, and clothing and footwear prices pushed up the inflation reading. Prices charged by manufacturers also rose by 3.9%, while inputs prices increased by 9.9%, the most since February 2017.

"The UK market is stuck in its range a bit. What will inspire confidence will be broad reopening in western Europe and the U.S., North America travel corridor," said Neil Wilson, chief market analyst at Markets.com.

"You do also want to see the Asian markets pick up too. The problem for UK is Asian markets weigh on commodities. So the rise in COVID-19 cases in Asia is worrying."

Globally, stocks slipped and cryptocurrencies sank as the threat of inflation had investors shy away from assets seen as vulnerable to any removal of monetary stimulus.

Among individual stocks, Ferguson climbed 2.2% to hit a record high after the plumbing and heating parts distributor reported a 65.4% jump in its third-quarter profit.

John Laing Group jumped 11.2% after private-equity firm KKR agreed to buy the British infrastructure investor in a deal valued at about 2 billion pounds ($2.84 billion).

Publisher Future gained 10.7% after its first-half results beat market expectations.

(Reporting by Shivani Kumaresan and Devik Jain in Bengaluru; Editing by Subhranshu Sahu, Uttaresh.V and Chris Reese)