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Bill Splitter

Split any bill fairly among friends, family or colleagues. Enter the total amount and number of people to calculate each person's share, including optional tip.

Last reviewed 15 August 2026

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Calculator inputs

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When to use this calculator

  • When you need a fast estimate before making a bigger decision.
  • When you want to compare a few scenarios using the same assumptions.
  • When you need a clearer starting point before using a detailed quote or formal document.
  • When you want to sanity-check a figure you have seen elsewhere.

A realistic UK planning example

Use these sample inputs as a quick scenario test, then change one variable at a time to compare outcomes.

A realistic UK planning example
InputValue
Total Bill (£)120
Number of People4
Tip (%)10

After entering these figures, focus on result first and then rerun the tool with a more cautious assumption.

How to read your results

Result

The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.

Method & assumptionsAuthoritative sources

This calculator divides a bill total equally among a specified number of people, with an optional tip or service charge percentage added on top before splitting. The tip is calculated on the gross bill total entered — if your bill already includes a 12.5% service charge, enter the full post-service-charge amount and leave the tip field at zero to avoid double-counting. The equal-split model assumes each person pays an identical share; for unequal splits based on individual orders, calculate each person's subtotal separately and add a proportional share of any shared items. The tool rounds final per-person amounts to two decimal places; minor rounding discrepancies of a penny or two are normal and are best resolved by one person covering the fractional difference.

Common mistakes

  • !Using optimistic assumptions without testing a more cautious scenario.
  • !Comparing outputs from different tools without checking that the inputs match.
  • !Treating the result as a final quote instead of a planning estimate.
  • !Rounding inputs too aggressively.

What to do next

  • Try at least one more scenario so you can compare a realistic range.
  • Use the related calculators below to cross-check the decision from another angle.
  • Write down the key outputs from your best scenarios before you decide.
  • If the result surprises you, change one input at a time to isolate the driver.

Frequently asked

Enter your values and calculate instantly.

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