Calculate tip amount and split the bill between any number of people.
To calculate a tip, multiply the bill by the tip percentage. For 20% on a $50 bill: $50 × 0.20 = $10 tip, $60 total. To split between 4 people: $60 ÷ 4 = $15 each. Standard US restaurant tip is 15–20%.
Tipping customs in the US follow fairly consistent guidelines by service type. At a restaurant, 18–20% is now considered the baseline for reasonable service — the old standard of 15% has shifted upward over the past decade. For exceptional service, 25% or more is appropriate. At a counter-service or fast-casual restaurant, tipping is optional and 10–15% is generous.
Restaurants: 18–20%. Bars: $1–$2 per drink or 15–20% on a tab. Taxi and rideshare: 15–20%, minimum $2. Hair salon: 15–20% of the service cost. Hotel housekeeping: $2–$5 per night, left daily. Food delivery: 15–20% of the order, more for large orders or bad weather. Spa services: 15–20%.
The cleanest way to split is to add the full tip to the bill first, then divide equally. If people ordered very different amounts, some groups prefer to calculate each person's share separately — this calculator handles either approach. For a group, consider one person paying and others using Venmo, Zelle, or Cash App to settle up.