Calculator: Sci, Loan & Unit

Free scientific calculator with calculation history, loan EMI calculator,
unit converter, BMI calculator, discount and date calculator — all in
one fast, simple app.

Looking for a calculator that does more than just math? Calculator: All-in-One
Tools is a fast, clean, and powerful calculator app built for students,
professionals, and everyday users.

🔢 BASIC & SCIENTIFIC CALCULATOR

Perform everyday arithmetic or advanced scientific calculations in one tap.
- Addition, subtraction, multiplication, division
- sin, cos, tan and inverse trigonometric functions
- log, ln, square root, cube root, factorial
- Constants like π (pi) and Euler's number e
- Degrees and radians mode
- Absolute value and expression editing

📜 CALCULATION HISTORY
Never lose a calculation again. Every result is saved automatically so you can
review, reuse, or continue any previous calculation anytime. Perfect for students and office workers who repeat similar calculations.

🔄 UNIT CONVERTER
Convert between hundreds of units instantly:
- Length, Weight, Temperature, Speed
- Volume, Area, Pressure, Energy
- Currency-ready format support

🏦 LOAN & INTEREST CALCULATOR
Planning a loan, EMI, or investment? Calculate monthly payments, total interest,
and repayment schedule in seconds. Ideal for home loans, car loans, and
personal finance planning.

🛒 DISCOUNT CALCULATOR
Shopping and want to know the final price after discount? Enter the original
price and discount percentage — get the final price and savings instantly.
Great for sale shopping, GST calculation, and price comparison.

🏋️ BMI & HEALTH CALCULATOR
Calculate your Body Mass Index (BMI) using your height and weight. Understand your health category — Underweight, Normal, Overweight, or Obese — instantly.

📅 DATE CALCULATOR
Find the difference between two dates, add or subtract days, or find what
day a date falls on. Useful for deadlines, event planning, and age calculation.

🏷️ UNIT PRICE CALCULATOR
Compare prices per unit to make smarter shopping decisions. Find out which
package size gives the best value for money.

✨ MORE FEATURES
- Memory functions: MC, M+, M−, MR for faster calculations
- Instant results as you type — no need to press equals
- Portrait and landscape mode support
- Haptic feedback and optional sound on button press
- Flexible number formats for better readability
- Clean, large-display layout — easy on the eyes
- 22 languages supported including Hindi, Arabic, Spanish, French,
Portuguese, Bengali, Urdu, Indonesian, and more

👥 PERFECT FOR
✔ Students doing homework, exams, and engineering calculations
✔ Office professionals for quick financial and data calculations
✔ Shoppers comparing prices and calculating discounts
✔ Anyone who wants a reliable, all-in-one calculator on their phone

Download Calculator: All-in-One Tools now — free, fast, and no login required!