Quick Formula Calculator 4+
Create custom formulas fast
庆鸿 林
Designed for iPad
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- Free
- Offers In-App Purchases
Screenshots
Description
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.
App Privacy
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
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
- 庆鸿 林
- Size
- 30 MB
- Category
- Education
- Compatibility
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- 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
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English, Hindi, Japanese, Korean, Portuguese, Simplified Chinese, Traditional Chinese
- Age Rating
- Learn More
- Contains Advertising User-Generated Content
- Copyright
- © 2025 luofeiyuo
- Price
- Free
- In-App Purchases
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- Lifetime Membership QAR 39.99
Supports
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Family Sharing
Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.