Casio FX-991CW Classwiz Non-Programmable Scientific Calculator








- Stock: In Stock
- Brand: CASIO
- Model: C83
- SKU: B0BLVCFK8D
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Casio FX-991CW ClassWiz Non-Programmable Scientific Calculator
Powerful User-Focused Summary
The Casio FX-991CW ClassWiz solves the everyday frustration of slow, cramped calculations by delivering fast, accurate scientific computation in a clear, easy-to-read format. Ideal for students and professionals, its high-resolution display and intuitive menus make complex functions approachable — from algebra and calculus to statistics and matrices. Built with durable materials and dual-power reliability, it offers dependable performance backed by a manufacturer warranty and Vlebazaar’s trusted customer service, secure checkout, and hassle-free support for replacements, repairs, and queries.
Top Features
- High-resolution display — clear, textbook-style equations for instant comprehension.
- Fast processing — near-instant results so you keep momentum on tests and assignments.
- Non-programmable design — exam-friendly and compliant with many standardized tests.
- Dual power (solar + battery) — uninterrupted use and reliable long-term performance.
- Compact, lightweight body — comfortable in hand and pocket-friendly for daily carry.
- Durable resin casing with hard slide-on cover — long-lasting protection against knocks.
- Wide function set — handles scientific, statistical, fraction and matrix operations with ease.
- Logical menu layout — quick navigation reduces learning time and exam stress.
- Accurate numeric precision — dependable results for coursework and lab work.
- Soft-touch keys with tactile feedback — comfortable, responsive input for prolonged use.
Technical Specifications
| Specification | Details |
|---|---|
| Model | Casio FX-991CW (ClassWiz) |
| Brand | Casio |
| Type | Non-programmable scientific calculator |
| Display | High-resolution natural textbook display for clear equations |
| Functions | Comprehensive set for scientific, statistical, matrix, and complex calculations |
| Power | Dual power — solar with button-cell battery backup |
| Materials / Build | Durable resin body with slide-on hard cover |
| Dimensions | Compact pocket-friendly size (approx. 160 × 77 × 10 mm) |
| Weight | Lightweight (approx. 80–90 g) |
| Colour | Classic black / dark grey finish |
| Connectivity | No external connectivity — offline use for exam compliance |
| Compatibility | Designed for school, college and many competitive exams (verify specific exam rules) |
| Box Contents | Calculator, protective hard case, user manual, warranty card |
| Warranty | Manufacturer warranty (refer to included warranty card) |
| Country of Origin | Manufactured by Casio (country as per unit packaging) |
Why Buy From Vlebazaar?
- Verified authentic products — we source genuine Casio calculators with original packaging.
- Reliable customer support — pre-sales guidance and after-sales assistance for warranty and service.
- Fast, insured shipping across India with secure packaging and tracking.
- Hassle-free returns and clear warranty handling — we stand behind every sale.
- Transparent product descriptions and responsive help if you need setup or usage tips.
Who Should Buy This?
- Secondary and higher-secondary students preparing for board exams.
- College students in science, engineering, commerce, and math-heavy courses.
- Competitive exam aspirants needing a reliable, exam-permissible calculator.
- Teachers and labs seeking durable, consistent calculators for classroom use.
- Anyone who wants a compact, accurate and long-lasting scientific calculator for everyday calculations.
Smart FAQs
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Is the FX-991CW allowed in exams?
It is a non-programmable scientific calculator commonly accepted in many school and competitive exams. Always confirm with your exam authority for specific rules.
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What powers the calculator and how long does the battery last?
Dual power: solar with a backup button-cell battery. Battery life depends on use; solar support extends operational life significantly.
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Does it support matrices and complex numbers?
Yes — it handles matrix operations, complex number calculations, statistical analysis and a wide variety of scientific functions.
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What warranty and after-sales support does Vlebazaar provide?
Units include the manufacturer warranty; Vlebazaar assists with warranty claims, replacements, and any issues through our customer service channels.
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Can I return the calculator if it’s defective?
Yes — defective items are eligible for return or replacement per Vlebazaar’s returns policy. Contact customer support immediately with details and photos for quick resolution.
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Are replacement batteries or covers available?
Spare batteries and third-party covers are widely available. Contact us if you need help sourcing official accessories.
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How do I reset the calculator?
Refer to the included user manual for reset instructions. If you need step-by-step help, Vlebazaar’s support team can guide you.

