Model selection is for labelling your estimate only. Enter the actual price you found from a Singapore seller below.
Use the seller’s current displayed price. This calculator does not invent or claim a live Casio retail price.
Disclaimer: Price calculator only; actual Casio prices, stock, promotions and warranty terms vary by seller. GST is added only when you state the entered seller price excludes GST.
Casio Calculator Singapore Price
Use the Casio Calculator Singapore Price tool to work out the estimated total cost of buying one or more calculators. Enter the current price shown by a Singapore seller, quantity, discount and GST information.
Selecting a Casio model only labels your estimate. The tool does not automatically load a price for that model. It does not track live prices, seller stock, promotions or warranty terms.
How to Use the Casio Calculator Price Tool
Follow these steps:
- Select the Casio model you want to label.
- Enter the current seller price for one calculator.
- Enter the quantity you want to buy.
- Add the discount percentage, if applicable.
- Confirm whether the seller price already includes GST.
- Select Calculate Price.
- Review the subtotal, discount, GST and estimated final amount.
Use the price currently displayed by the seller. Do not treat the model name shown in the calculator as a live price quotation.
If you want to test common mathematical functions before buying a device, try the Casio Scientific Calculator Singapore online tool.
What Information Does the Calculator Need?
Casio model
Select the model you are checking. This selection is used to identify the estimate only.
Choosing a model does not automatically insert its market price. You must enter the actual price found at a Singapore shop or online seller.
Seller price per calculator
Enter the seller’s displayed price for one calculator in Singapore dollars.
Check whether the price:
- Applies to the exact model
- Includes GST
- Requires a membership
- Is part of a promotion
- Includes delivery
- Includes a local warranty
- Is for a new or used calculator
Quantity
Enter the number of calculators you want to purchase. Quantity is useful for parents, students, tutors, schools or offices comparing the total cost of several units.
Discount
Enter the discount as a percentage. If there is no discount, leave the value at zero.
A seller may place limits or conditions on a promotion. Confirm that the discount applies to the chosen model and quantity.
GST option
Keep the GST checkbox selected when the entered seller price already includes GST. This is common for prices displayed to consumers by GST-registered Singapore businesses.
Clear the checkbox only when the seller has clearly stated that the entered price excludes GST. The calculator will then add GST to the discounted amount.
Casio Calculator Price Formula
The calculator first finds the subtotal:
Subtotal = Seller price × Quantity
It then calculates the discount:
Discount amount = Subtotal × Discount percentage ÷ 100
The amount after discount is:
Discounted amount = Subtotal − Discount amount
If the entered price excludes GST, the calculator applies the current 9% GST rate:
GST = Discounted amount × 9%
The estimated final price is:
Final price = Discounted amount + GST
When the entered price already includes GST, the calculator does not add GST again.
Example Calculation
Suppose a calculator costs S$45 and you want to buy two units with a 10% discount.
Subtotal
S$45 × 2 = S$90
Discount
S$90 × 10% = S$9
Amount after discount
S$90 − S$9 = S$81
If the S$45 seller price already includes GST, the estimated final amount remains S$81.
If the price excludes GST, the calculator adds 9% GST:
S$81 × 9% = S$7.29
Estimated final amount
S$81 + S$7.29 = S$88.29
Actual billing and rounding may depend on the seller’s checkout system and promotion rules.
Does the Displayed Seller Price Include GST?
Singapore’s current GST rate is 9%. GST-registered businesses generally must display GST-inclusive prices to the public.
This means the amount shown on a normal consumer-facing price tag or product page should usually be the final price, subject to stated delivery fees or other separate charges.
Confirm the price details before changing the GST checkbox. You can read the current rules on the official IRAS price-display page.
Why Do Casio Calculator Prices Vary?
The same calculator model may have different prices because of:
- Seller promotions
- School-season demand
- Model availability
- Local or overseas stock
- Warranty coverage
- Delivery charges
- Bulk-purchase offers
- Membership discounts
- Product condition
- Included accessories
A lower price is not always the best deal. Check the seller, warranty, authenticity, return terms and delivery cost before purchasing.
The calculator does not verify whether a product or seller is genuine.
Choosing a Calculator for School or Examinations
Do not choose a calculator based only on price. Check the features required for your course and confirm the rules set by your school or examination authority.
Some examinations allow only specific calculator models. Internet access and online calculator tools may also be prohibited.
Before buying:
- Confirm the exact model number
- Check the examination rules
- Compare the required functions
- Review the warranty
- Check the return policy
- Confirm whether batteries or accessories are included
Use a physical model that meets the relevant official requirements when taking an examination.
Planning the Purchase Cost
Calculator cost may be part of a wider school or household budget. You can browse the All Calculators directory for other planning tools.
For household utility planning, the Singapore Electricity Calculator provides a separate estimate based on electricity usage and tariff information.
Immigration matters are unrelated to calculator prices. The Singapore PR Points Calculator explains general published PR application factors without providing an official score or approval prediction.
Visit the Calculator Singapores homepage to explore more Singapore calculators by category.
Important Disclaimer
This is an independent price-calculation tool. It is not owned, operated, approved or endorsed by Casio Computer Co., Ltd.
The calculator does not provide live Casio prices. The selected model is used only to label the estimate. Actual prices, stock, promotions, GST treatment, delivery charges and warranty terms vary by seller.
Always confirm the final amount and product information directly with the seller before purchasing.
Frequently Asked Questions
Does the calculator show live Casio prices?
No. You must enter the current seller price yourself. The calculator does not connect to a retailer or live price database.
Does selecting a model add its price automatically?
No. Model selection only labels the estimate. Enter the actual price shown by the seller.
What GST rate does the calculator use?
When GST must be added, the calculator uses Singapore’s current 9% GST rate.
Should I select the GST checkbox?
Select it when the entered seller price already includes GST. This is common for consumer-facing prices from GST-registered Singapore businesses.
How is the discount calculated?
The discount percentage is applied to the subtotal, which is the seller price multiplied by quantity.
Does the result include delivery fees?
Not unless you have already included the delivery cost in the price you enter. Check the seller’s checkout page for separate fees.
Can I use the price to confirm that a product is genuine?
No. The calculator cannot verify the product, seller, warranty or authenticity.
Is the estimated total guaranteed?
No. Confirm the final price, GST treatment, promotion terms, delivery cost and warranty directly with the seller.