Split Group Restaurant Bills,
Fair Math, Fast Checkout.
Free restaurant and shopping calculators: tips with instant splits, group bill division, discount and coupon math, and unit price comparisons.
Pre-Tax Tipping Truth
Tip on food and beverage subtotal, not on municipal sales tax.
Even Headcount Division
Evenly divides shared appetizers and tax so nobody gets stuck with the surplus.
Rounding to Nearest Dollar
Round up to whole dollars for seamless cash or Venmo payment transfers.
SplitSync Tools
Tip Calculator
Tip on the pre-tax amount (the right base), rounded to clean figures, with per-person totals built in.
Group Bill Splitter
Split a bill fairly by amounts or evenly — with tip handling that ends the "how do we handle the tip" debate.
Discount & Coupon Calculator
Percent-off, stacked coupons, and "extra 20% off already-reduced" — decoded to the actual final price.
Unit Price Comparison Calculator
The shelf-tag decoder: true cost per ounce/unit across sizes and brands — including the bulk-size traps.
Practical Guides & Best Practices
The psychology of the check: why group money moments go sideways
Social pressure, ambiguity, and the ten-second tools that make fairness cheap.
Shrinkflation and the unit-price defense
Same price, less product — how to spot it in seconds and reprice your staples automatically.
12 mistakes people make with tip and split math
The recurring errors we see in tip and split math — what causes each one, and the habit that prevents it.