--- product_id: 673347506 title: "FX991MSPLUS2 Engineering/Scientific Calculator" brand: "casio" price: "₱21009" currency: PHP in_stock: true reviews_count: 5 category: "Casio" url: https://www.desertcart.ph/products/673347506-fx991msplus2-engineering-scientific-calculator store_origin: PH region: Philippines --- # 2-line multi-replay display 401 advanced functions Dual solar & battery power FX991MSPLUS2 Engineering/Scientific Calculator **Brand:** casio **Price:** ₱21009 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your calculations — because precision is the new power move. ## Quick Answers - **What is this?** FX991MSPLUS2 Engineering/Scientific Calculator by casio - **How much does it cost?** ₱21009 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/673347506-fx991msplus2-engineering-scientific-calculator) ## Best For - casio enthusiasts ## Why This Product - Trusted casio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Durable:** Sleek, high-quality plastic with a protective slide-on hard case for on-the-go pros. - • **Uninterrupted Power:** Solar plus battery backup ensures your workflow never stalls. - • **Step-Back Confidence:** Multi-replay lets you review every step, eliminating costly errors. - • **All-in-One Scientific Tool:** 401 functions including 40 constants & metric conversions to cover every engineering need. - • **Master Complex Calculations:** Tackle calculus, vectors, matrices & base conversions with ease. ## Overview The Casio FX991MSPLUS2 is a professional-grade scientific calculator featuring 401 advanced functions, dual solar and battery power, and a 2-line multi-replay LCD display. Designed for engineers and students alike, it supports calculus, vector/matrix operations, base conversions, and includes 40 scientific constants and metric conversions. Its durable design with a slide-on hard case ensures portability and protection, making it an essential tool for precise, efficient calculations anytime, anywhere. ## Description Casio FX991MSPLUS2 scientific calculator. 2-Line display scientific calculator. Multi-replay function: backtrack step-by-step through calculations after you perform them. Equation solver, fraction calculations, permutation/combination, stat-data editor, solar Plus with Battery back-up, trigonometric functions, 1 independent Memory. Comes with slide-on hard case. Review: These are the best calculators I’ve used and they are a great price, I’d recommend getting them. The box comes with the calculator, the manual, and all the other information you need. The screen is bright and easily readable, it responds quickly to pressing the buttons. The quality is great, the plastic is smooth, high quality, and a nice dark grey colour. I got these for my schoolwork and they cover everything I needed. I definitely enjoyed this purchase, and recommend anyone who needs calculators to buy these. Review: Works well. Easy to use ## Features - Scientific calculator with 401 advanced functions. Solar and battery backup - Calculus: integration, differential calculations; vector & matrix - Engineering calculations with different bases; base-n calculations/ conversions DECT., hex., Oct., and binary - 40 scientific constants and 40 metric conversions - Two -way power; slide -on hard case ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07SK3GDM8 | | Best Sellers Rank | 331,981 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 355 in Scientific Calculators | | Box Contents | Calculator, casecover, manual | | Brand Name | Casio | | Calculator Type | Engineering/Scientific | | Colour | gray | | Customer Reviews | 4.7 4.7 out of 5 stars (1,006) | | Display Type | LCD | | Enclosure Material | Plastic | | Item Dimensions L x W | 6.4L x 3W centimetres | | Item Weight | 0.21 Pounds | | Manufacturer | Casio | | Manufacturer Part Number | FX991MSPLUS2 | | Model Name | FX 991MSPLUS2 | | Model Number | FX991MSPLUS2 | | Number of Batteries | 1 LR44 batteries required. (included) | | Power Source | Battery Powered | | Screen Size | 2.52 | | UPC | 889232607429 | ## Product Details - **Brand:** Casio - **Calculator Type:** Engineering/Scientific - **Colour:** gray - **Display type:** LCD - **Material:** Plastic - **Model name:** FX 991MSPLUS2 - **Number of batteries:** 1 LR44 batteries required. (included) - **Power source:** Battery Powered - **Product dimensions:** 6.4L x 3W centimetres - **Screen size:** 2.52 ## Images ![FX991MSPLUS2 Engineering/Scientific Calculator - Image 1](https://m.media-amazon.com/images/I/71mJJhJ0GpL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by T***️ on 4 December 2025* These are the best calculators I’ve used and they are a great price, I’d recommend getting them. The box comes with the calculator, the manual, and all the other information you need. The screen is bright and easily readable, it responds quickly to pressing the buttons. The quality is great, the plastic is smooth, high quality, and a nice dark grey colour. I got these for my schoolwork and they cover everything I needed. I definitely enjoyed this purchase, and recommend anyone who needs calculators to buy these. ### ⭐⭐⭐⭐⭐ Review *by S***S on 6 November 2025* Works well. Easy to use ### ⭐⭐⭐⭐ Review *by S***T on 17 November 2024* Goodie, despite me spilling corn syrup on thr #3 and #6 key it still works but buttons sticky ## Frequently Bought Together - Casio FX991MSPLUS2 Engineering/Scientific Calculator - Helix Oxford Maths Set with Storage Tin - 10 Piece Maths Equipment Set - Helix Oxford 30cm Folding Ruler, Oxford Blue --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/673347506-fx991msplus2-engineering-scientific-calculator](https://www.desertcart.ph/products/673347506-fx991msplus2-engineering-scientific-calculator) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-05-19*