All Calculator: Math & Finance

All Calculator by GameRumble brings ten practical tools into one searchable Android app.

MATH
Basic arithmetic with parentheses, decimals and an explained percent key. Scientific functions include trigonometry, inverse trig, logarithms, powers and roots, with a visible degree/radian choice. The Percentage tool handles percent-of, percent-change, increases and discounts.

HEALTH ESTIMATES
Adult BMI with metric or US units and CDC screening categories for ages 20+. Calorie maintenance estimates use the simplified Mifflin–St Jeor resting-energy equation and approximate activity factors for adults 19–78. These features do not diagnose conditions, replace professional advice or prescribe diets. Calorie estimates are not intended for children, pregnancy or breastfeeding.

FINANCE
Estimate fixed-rate mortgage or loan/EMI payments, total interest and repayment schedules. Add optional mortgage tax, insurance and fees separately. Project compound interest with monthly contributions and stated timing and compounding assumptions. These are mathematical estimates, not lender offers or guaranteed returns. Amounts use the same currency and two-decimal payment rounding; there is no currency conversion.

EVERYDAY
Calculate calendar age on a selected date, see the next birthday estimate, or split a bill with tips and optional tax. Bill splitting accounts for leftover cents.

MADE FOR REPEAT USE
Search tools and pin favorites. History is optional and stays on your device; saving health calculations needs a separate choice. Delete entries, clear history or share a selected result through Android. No account required.

All ten tools work offline. Interface languages: English, Arabic, Urdu, French, German, Spanish, Italian and Portuguese, with RTL layouts for Arabic and Urdu. Choose Light, Dark or Auto to follow the device theme.

Contains AdMob ads and applicable privacy choices. Ads stay away from active keypads and calculation inputs. More Apps opens published GameRumble apps on Google Play.

Support: unrealstudio90@gmail.com

Recent changes:
Initial release: ten offline calculators, favorites, optional local history, result sharing, eight languages and light/dark themes.