🎨
Hair Color Bowl Calculator
Turn your own ratio and formula into exact bowl weights, then preserve what was
actually poured — gram-first and fully offline.
Download on the App Store
Built for independent professional colorists
- One total, every bowl weight: enter a complete bowl total, choose the ratio
from your product’s instructions, split colors by percentage, and read exact grams —
with the full math visible on every line.
- Scale a real formula: bring back a client’s last actual formula and
scale it to today’s total or by a factor.
- Over-Pour Rescue: enter what is already in the bowl and get proportional
additions only — never a suggestion to remove, discard, or change strength.
- Client formula memory: unlimited aliases, each keeping its latest actual
formula, always available.
- Your own processing timer: a user-set timer that survives backgrounding,
with a generic completion notification.
- Private by design: no account, no ads, no analytics, no network.
Five languages
English, Español, 日本語, Deutsch, and Português (Brasil) —
with the store listing localized to match.
This is a math and record-keeping tool. It does not select developer strength,
recommend lightening or processing instructions, or replace product labels, current manufacturer
technical manuals, salon policies, training, or professional judgment.