In most cases, a standard garden hose should be able to fit onto the water tap for a washing machine. Both washing machines and garden hoses typically use a standard faucet connection size in many parts of the world.
The standard faucet size for both washing machines and garden hoses is 3/4 inch (about 19 mm) in diameter for the threaded part that connects to the tap. This means that the female end of the garden hose should have the same diameter as the male end of the washing machine water inlet hose. As a result, you should be able to connect the garden hose to the water tap without any issues.
However, keep in mind that there can be variations in faucet sizes or thread types in different regions, so it's a good idea to check the specific size and threading of your water tap and garden hose to ensure they are compatible. If you encounter any difficulties, you may consider using a hose adapter to bridge the connection between the garden hose and the water tap. These adapters are widely available and can help you connect hoses with different fittings.