I found it to be 8133.46 tonnes
USA 522,981,478,000
8133.46 tonnes valued at $1,866.24USD per ounce = $485.726 Billion USD.
Not sure this is correct, but IF:
The United States has 8133 tones = 286,883,100 ounces (@ ~ $1,870.00) = ~ $536,471,397,000.00)
USA has 8133 tonnes, with the price of 1 ounce at $1,877.90, this means the US has $488,734,742,400 worth of gold in reserves
USA 8134
523 Billion
Portugal - 383 tonnes of gold;
Each tonne is approximatly 32150.7466 troy ounces;
1 Troy ounce of gold costs 1868$ at time of writing (18/5/2021);
383 * 32150.7466 * 1868 = 2 300 686 610 $
(Brazilians claim it’s their Gold 
)
USA 8124 Tonnes Dec. 2020
$523 Billion
Mexico :
120 tonnes
Price:
$7,208,136,000.00 USD
Netherlands: 612 tons of gold (dec 2020).
Today the spotprice of gold is 1870 dollars per troy ounce. And 1 troy ounce is about 31.1 grams. So 1 kg is 32.15 troy ounces.
32.15 troy ounces x 1870 dollars= 60120,5 dollars. (price of 1 kg of gold)
60120,5 x 612000 = 36.793.746.000 dollars. (total price)
Canada has 0 ton = $0 in gold reserves
The U.S holds 8,133 tonnes and at the current price of $1,873 it valued at $489,842,457,000.
Brazil holds 67.36 tonnes and at the current price = 4,079,179,464.00 USD
as of May 2021 there are 8133.46 tonnes of gold in the US central bank.
1oz = 1882.75
1882.75 x 32,150.7 = 60.53 million
@ 60.53 million per tonne x 8133.46 = $491.9 billion
United States =8133 tons
Price per ton = $51,215,500
Equals a lot of money $416,535,661,500.00
I chose to go by the price of a ton because I’m sorry, when you have weight you don’t measure by the smaller fractions.
Ireland 6 tonnes , 279 mil usd
My country Nigeria current Gold in its reserve is
= 21.46 tonne
Current value in USD =
21.46 ton × 32,150.7 × $1,700/oz =
= USD 1,172,921,837.4
Approx = USD 1.173 Billion
Currently UK has $18,695,790,000.00 in gold.
Hungary has $1,900,336,590.00 in gold.
Germany -
- 3362t of Gold
- 1 troy oz = 31,1035g
- 1 troy oz Gold = 1.878,29$
- 3362t = 3362000Kg = 3362000000g
- 3362t Gold = 108090729 troy oz Gold
- 108090729oz x 1.878,29$ = 203.025.735.373 $
= 203b$
The US has 8133 Tonnes of gold at a rough value of 540,114,231,293.47 US Dollars
UK 310 TONNES
current value
$18769747310.05