Kazakhstan's national currency tenge has strengthened against the US dollar by 4.7 percent.

The official exchange rate of tenge was 343.62 KZT/$1 on Apr. 1 against 327.66 KZT/$1 on May 1, according to the National Bank of Kazakhstan.

The minimum rate of tenge was observed Jan. 22 - 383.91 KZT/$1 since the beginning of 2016, according to the bank.

The exchange rate of tenge began to decline after the country's National Bank switched to a floating rate in August 2015.

/By Trend/