Quick Formula Calculator
Create custom formulas fast
Free · In-App Purchases · Designed for iPad
Design your own calculators with variables, functions and units. Organize by tags, preview results, keep history, and use a handy date calculator for study, work and life
Turn any idea into a calculator you can trust. Formula Calculator lets you build custom calculators with variables, functions and units—perfect for study, engineering, finance, science and daily life.
【Core Features】
• Build Your Own Calculators
- Define inputs with friendly names and default values
- Choose units (kg, m, USD, etc.) for clear results
- Write expressions using common math functions
- Control decimal places for precise outputs
- Preview results instantly while typing
• Organize Everything
- Use tags to group formulas (geometry, statistics, BMI, physics, finance)
- Search across all formulas in seconds
- Sort by name, time, or custom order
- Reuse sub-formulas to keep complex projects tidy
• Never Lose Your Work
- Every calculation saved to History automatically
- Recalculate with one tap
- Export data when needed
- Keep progress across sessions
• Built-in Date Calculator
- Find days before/after any date
- Calculate the number of days between two dates
- Perfect for planning and deadlines
【Perfect For】
- Students - Geometry, physics, statistics calculations
- Engineers - Custom engineering formulas
- Finance - Compound interest, ROI, loan calculations
- Daily Life - BMI, cooking conversions, date planning
Clean design, instant feedback, and powerful tools make this the one "formula calculator" you'll use every day. Build once, use forever.
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
Bug Fixes
The developer, 庆鸿 林, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- 庆鸿 林
- Size
- 30 MB
- Category
- Education
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
English and 6 more
- English, Hindi, Japanese, Korean, Portuguese, Simplified Chinese, Traditional Chinese
- Age Rating
4+
- 4+
- Contains
Advertising
User-Generated Content
- In-App Purchases
Yes
- Lifetime Membership USD 9.99
- Copyright
- © 2025 luofeiyuo
