RoomMate Cost Splitter
Effortlessly split group bills and expenses.
Your privacy & fairness, guaranteed.
Quick Calculator
One person inputs all names and expenses. Best when you’re managing receipts for the whole group at once!
Group Room
Each member joins and enters their own purchases. Everyone sees the real-time split—perfect for roommates and trip groups!
How does it work?
- Pick Quick Calculator or Group Room.
- Add each expense & assign names. Include tax/service as needed.
- See instant, per-person breakdowns—no math, no confusion!
PrivacyGroup data is securely stored and automatically deleted after 14 days—powered by Google Firestore’s TTL. No permanent history, always private. Quick Calculator data is never saved to our servers.
Example: Dinner with Friends
Alice, Bob, and Carla go out for dinner. Alice pays for pizza, Bob pays for drinks. Instead of splitting by guesswork, just add each item and payer—everyone instantly sees what they owe (including tax/tip if needed)!
Try it yourself below.
Why use RoomMate Cost Splitter?
- Zero sign-up. Fully free.
- Ideal for roommates, events, trips, and families.
- Easily download the costbreakdown as image.
- Handles any tax, service charge, or extra fees.
- Share calculations or collaborate in a group room.
- Strong privacy: all group data auto-deletes after 14 days.
Frequently Asked Questions
- What's the difference between Quick Calculator and Group Room?Quick Calculator: One person enters all names and costs.
Group Room: Each member joins and adds their own expenses live. - How is my data handled?
All group room data is stored securely and deleted after 14 days using Google Firestore Time-To-Live (TTL). Quick Calculator runs only in your browser—data never leaves your device. - Can I use this for trips or regular bills?
Yes! Start a new group for each event, or use Quick Calculator if you're collecting everyone's expenses yourself. - Need help?
Email us: Contact here
Quick Calculator
Calculate costs instantly for yourself.
Purchased Items
No items added yet.
Cost Breakdown
Add items to see breakdown.
Grand Total
Rp 0
Tax and Service Charge
Choose how tax & service are applied: independently, or sequentially.
Add New Item
Type existing name or enter a new one.
Collaborate with Friends
Calculate costs together in a shared room.
Start a Group Calculation
Create a room and share the link with friends.
Initializing session...
Join an Existing Room
Collaborative calculations use shared rooms and require a secure session. By creating or joining a room, you agree to temporarily store calculation data for collaboration purposes.