Splitting a bill should not need a calculator argument. Below are clear answers to the questions people ask most about dividing restaurant checks, tipping, rent and shared bills. Each answer starts with the short version, then adds the detail.
Splitting a restaurant bill
What is the fairest way to split a restaurant bill?
The fairest method depends on the table. If everyone ordered similar amounts, split the total equally. If orders differ a lot, each person should pay for what they ordered plus a proportional share of tax and tip, which is called going Dutch. A hybrid works well for mixed tables: share the food equally and let only the people who had drinks pay for the drinks. The free restaurant bill splitter handles all three.
What does going Dutch mean?
Going Dutch means each person pays only for their own meal and drinks instead of dividing the bill equally. Tax and tip are then shared in proportion to what each person ordered, so nobody pays extra on someone else's order.
How do I split a bill when one person ordered much more than everyone else?
Use an itemized split instead of an equal split. Add each person's dishes, then divide tax and tip by each person's share of the food subtotal. For example, if one friend ordered $30 of food and another ordered $50, the first pays 37.5% of the tax and tip and the second pays 62.5%. The Go Dutch tab does this automatically.
How do you split a bill when someone didn't drink alcohol?
Separate the drinks from the food. Everyone splits the food, and only the people who had drinks pay for them, with a proportional share of tax and tip on those drinks. This hybrid approach keeps non-drinkers from subsidizing a bar tab.
How do you split shared appetizers and sharing plates?
Divide the shared items equally among the people who actually ate them, and add that amount to each person's own order. If the whole table shared, a simple equal share of those items is fine.
How do you split the bill at a birthday dinner?
A common custom is to divide the birthday person's share among everyone else, but there is no rule. Agree on it before the check arrives, then enter the amounts in an itemized split so the numbers add up exactly.
How do we split the bill fairly in a large group?
For larger groups, itemize by person or by couple and share only the common items equally. Check whether the restaurant has already added an automatic service charge, which is common for large parties, so you do not tip twice.
Tipping, tax and service charges
How do you split tax and tip proportionally?
Work out each person's share of the food subtotal, then apply that share to the total tax and tip. Example: two diners ordered $30 and $50, with 8% tax and a 20% tip on the $80 subtotal. Tax is $6.40 and tip is $16.00. The first person pays $30 + $2.40 + $6.00 = $38.40 and the second pays $50 + $4.00 + $10.00 = $64.00. The total is $102.40.
How much should I tip at a restaurant in the US?
For table service in the US, 15% to 20% of the bill is customary, with around 18% a common middle ground and 20% typical for good service. Tipping is a custom, not a law. See the full US tipping guide for a quick chart.
Should I tip on the pre-tax or post-tax amount?
Both are accepted. Many people tip on the pre-tax subtotal because sales tax is not part of the service. Tipping on the post-tax total costs slightly more and is also common.
Do I still tip if a service charge is on the bill?
In the UK, an optional service charge already covers the tip, so an extra tip is only for exceptional service. In the US, automatic gratuity (often for parties of six or more) works the same way. Always read the bill first. More detail is in the UK guide and the USA guide.
Is a service charge compulsory in India or the UK?
In both countries a service charge added to a restaurant bill is generally voluntary unless it was clearly stated before you ordered. You can ask for a discretionary service charge to be removed. See the India guide and the UK guide.
How do you work out a 20% tip quickly?
Move the decimal one place to the left to get 10%, then double it. On a $60 bill, 10% is $6, so a 20% tip is $12. For 15%, add half of the 10% amount to the 10% amount: $6 + $3 = $9.
Splitting rent between roommates
What is the fairest way to split rent between roommates?
If the rooms are similar, split rent equally. If they differ, split by room size, then add a flat premium for features such as a private bathroom or balcony. Example: a $2,000 rent with rooms of 150 and 100 sq ft means shares of 60% and 40%, or $1,200 and $800. The rent split calculator does this for you, and the rent guide explains each method.
How do you split rent by room size?
Divide each bedroom's area by the total bedroom area, then multiply that percentage by the monthly rent. Shared spaces like the kitchen and living room are usually left out because everyone uses them.
How much more should a room with a private bathroom pay?
There is no official figure. Roommates usually agree on a flat monthly premium, take it off the top of the rent, split the rest by room size, then add the premium to the room that has the bathroom. Pick a number everyone accepts and write it down.
How do you split rent when a couple shares a room?
A common approach is to count a couple as 1.5 people because they use more shared space but not twice as much. For $3,000 rent with a couple and two single roommates, that is 3.5 shares: about $857 for each single roommate and about $1,286 for the couple. Agree on the method before signing the lease.
How do you prorate rent when someone moves in or out mid-month?
Divide the monthly share by the number of days in the month, then multiply by the days the person lives there. For a $1,200 share in a 30-day month with a move-in on the 11th, that is 20 days: $1,200 ÷ 30 × 20 = $800.
Utilities and shared household costs
How do you split utility bills between roommates?
Split fixed bills such as internet equally. For bills that change, such as electricity, gas and water, split equally if everyone is home a similar amount, or split by days at home if people are away often. Agree the rule in advance. The full method is in the utility bills guide.
What if one roommate uses much more electricity?
Agree on a rule before the bills arrive. Many households keep internet and water equal and ask the heavier user to cover a larger share of electricity, or the extra cost of a heater, air conditioner or a computer that runs all day.
How do you split a bill by the number of days each person was home?
Count each person's days at home (person-days), divide the variable bills by the total person-days, then multiply by each person's days. Example: $180 of electricity, water and gas with 80 total person-days costs $2.25 per person-day, so someone home for 20 days pays $45.
How do you split a final utility bill when a roommate moves out?
Prorate their share by days lived in the home, settle the last statement before they leave, and agree who will cover any bill that arrives after they have gone.
Using SplitOrDutch
Is SplitOrDutch free to use?
Yes. SplitOrDutch is completely free, with no sign-up, no subscription and no app to download.
Does SplitOrDutch store my bill or my friends' names?
No. The calculators run entirely in your web browser. Names, amounts and receipts are not sent to or stored on a server. Only your chosen currency and light or dark mode are remembered, in your own browser.
Which currencies does SplitOrDutch support?
US dollars (USD), British pounds (GBP), euros (EUR) and Indian rupees (INR). It starts in US dollars and remembers your choice on later visits in the same browser.
Can I share the result on WhatsApp?
Yes. After you calculate, tap the WhatsApp button to open a ready-made message with each person's amount, or copy the summary to paste anywhere.
Does SplitOrDutch work on a phone?
Yes. The calculators work in any modern browser on phones, tablets and computers, in both light and dark mode.
What is the difference between the restaurant splitter and the rent splitter?
The restaurant bill splitter divides a dining check equally or by item with proportional tax and tip. The rent splitter divides rent by room size and perks, and can include shared bills such as Wi-Fi, power, gas and water.
Try the calculators
Skip the math with the free restaurant bill splitter or the rent split calculator. Both are free, need no sign-up and run in your browser. For longer explanations, read the SplitOrDutch guides.
This page is general information, not legal or financial advice. Tipping customs, tax rates and service charge rules vary by place, so check your own bill and local rules.
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