Calculate tips instantly with bill splitting. Perfect for restaurants, delivery, and services.
The standard formula is: Bill Amount x Tip Percentage = Tip Amount. Then add the tip to the bill for the total. For a $50 bill at 20%: $50 x 0.20 = $10 tip, making your total $60.
At restaurants, 15-20% is standard for table service. For exceptional service, 25% or more is generous. At bars, $1-2 per drink or 15-20% of the tab is customary. For delivery drivers, 15-20% with a minimum of $3-5. Hair salons typically receive 15-20% of the service cost. Hotel housekeeping usually receives $2-5 per night.
To calculate 20% quickly in your head: move the decimal point one place left (that's 10%), then double it. For a $45 bill: 10% = $4.50, doubled = $9.00 tip. For 15%, calculate 10% and add half again: $4.50 + $2.25 = $6.75.