Translation guide
Expresses an equal split, even chance, or half-and-half situation. Japanese uses several set phrases and patterns depending on context.
Describing something divided into two equal parts, such as costs, portions, or outcomes.
The most direct equivalent, meaning 'half and half'. Used for splitting things like bills, chances, or mixtures.
Let's split the cost fifty-fifty.
The chances of success are fifty-fifty.
Literally 'five parts five parts', meaning equal odds or an even split. Common in gambling, sports, or uncertain outcomes.
The match is fifty-fifty.
Specifically for splitting expenses or bills equally. More formal than 半々.
Let's go fifty-fifty on the meal.
Talking about a situation with two equally likely outcomes.
Describing a blend or combination of two elements in equal proportion.
Used for physical mixtures, like coffee and milk, or abstract mixes like work and play.
Please put in coffee and milk fifty-fifty.
半々 is the most versatile for splits, mixtures, and chances. 五分五分 is stronger for equal odds in contests or uncertain outcomes. 折半 is limited to sharing costs or bills.
Saying 'フィフティーフィフティー' is understood by some Japanese speakers, but it sounds like borrowed English and is not natural. Use the native phrases above.
合格の可能性は半々だ。
The chance of passing is fifty-fifty.