Turn your everyday spending into a real retirement target, either with a quick percentage estimate or a detailed, category-by-category budget.
A common rule of thumb is that retirees spend somewhere between 70% and 90% of their pre-retirement budget, since some costs (commuting, work clothes, retirement contributions) tend to shrink while others (health care, travel, hobbies) can grow. If you already know your current monthly budget, you can apply a percentage like this to get a fast estimate.
If you want more precision, you can instead build your retirement budget from the ground up, category by category. This takes a bit more time but produces a number that reflects your actual expected lifestyle rather than a general rule of thumb.
Either way, the result feeds into the same 4% rule math from your quick snapshot: your estimated annual retirement spending, divided by your chosen withdrawal rate, gives you a target retirement balance.
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Pick the calculation below that matches how much detail you want to go into.