Pick your calculator
Choose from eight tools covering rent, bills, travel, childcare, restaurants, and more.
Eight free calculators for rent, utilities, restaurant bills, group travel, childcare, carbon offsets, and more — so everyone pays exactly what's fair.
Process
Three simple steps to end the arguments and get back to enjoying each other's company.
Choose from eight tools covering rent, bills, travel, childcare, restaurants, and more.
Add the total amount and each person's relevant figure — income, room size, or WFH days.
Copy the breakdown with one click and send it to the group. No arguments needed.
The tools
No signup. No tracking. Just the number.
Split any bill by income, equally, or by custom ratio.
Split rent fairly based on bedroom square footage.
Split heating, electricity, and internet by WFH days.
Divide group holiday and road trip costs fairly.
Split restaurant bills with tip, tax, and uneven orders.
Divide childminder and nursery costs by usage or income.
Find overlapping working hours for remote teams.
Estimate flight emissions and how much to offset.
From the blog
Split rent, bills and groceries by income, room size or custom ratios — and end the 50/50 argument for good.
Tired of paying the same rent as your flatmate who has the master bedroom? Two proven methods explained.
Two proven methods for adjusting household bills when flatmates have different WFH patterns.
Handle accommodation splits, activity opt-outs, and road trips without post-holiday awkwardness.
Behavioural science explains why equal splits cause resentment — and what actually makes people feel fairly treated.
How to split restaurant bills when someone only had a starter and someone wants to leave a 25% tip.