A discount calculator for the real price before checkout.
Write each offer, coupon, fee, and quantity in order so two shopping options can be compared on the same page.
Holiday Mega Sale Order
Stacking Store Coupons, Member Perks & Platform Rebate
The final price deserves more than one discount button
Stacked promotions, shipping, tax, and shared orders can change which offer is actually cheaper.
01Keep the order
Applying discounts in the wrong order can change the answer.
Write each reduction in the sequence it uses.
02Add the real extras
A sale price may leave out tax, shipping, or service fees.
Keep the extra costs beside the offer.
03Compare like for like
Two coupons are hard to compare when their assumptions differ.
Change one input and review both final totals.
Stacked Percentage & Dollar Off
Freely mix percentage discounts (e.g. 20% off) with flat vouchers (e.g. -$15 coupon).
Live Tax & Shipping Inclusion
Formulas apply sales tax only to discounted sub-totals, exactly like official checkout.
Share Savings with Friends
Export an image breakdown of group order savings to split costs with roommates.
Work out the real price before checkout
Put discounts, coupons, tax, and shipping in order so the final comparison uses the same assumptions.
- 01
Enter the offer
Write the list price and each discount in the order it applies.
- 02
Add the extras
Include tax, shipping, fees, or a shared order total.
- 03
Compare the result
Change a coupon or quantity and see which offer costs less.
Designed for Real-World Tasks
Calculate with Context & Clarity
Black Friday & Cyber Monday Deals
ShoppingTest doorbuster promo codes, flash sale coupons, and cart-level thresholds.
Wholesale & Volume Tier Pricing
WholesaleCalculate unit price breaks when ordering 10, 50, or 100 units from a supplier.
Group Meal & Food Delivery Splitting
FoodApply bundle delivery discounts and delivery fee share fairly across friends.
Clearance & Outlet Savings Audit
RetailVerify if "Buy 1 Get 1 50% Off" is cheaper than an outright 30% storewide clearance.
Explore Detailed Walkthroughs
Discount Calculator Guide
Learn how to calculate multi-step discounts, sales tax, and promo stacking.
Shopping Calculator Guide
Organize grocery lists, compare store promotions, and verify checkout totals.
Percentage Calculator Guide
Master percentage increase, decrease, markups, and margins in formulas.
Continue with a calculation page
A budget you can revise
Plan income, bills, flexible spending, and savings on an editable budget page that you can revise as the month changes.
Explore featureEdit without rebuilding
Build a calculation page once, then change prices, rates, or quantities and follow the linked results without retyping the work.
Explore featureNotes and numbers together
Write labels, notes, and calculations on one editable page. Keep the context beside each number for budgets, shopping, projects, and everyday planning.
Explore featureFrequently Asked Questions
Everything you need to know about calculating with FlexiCalc
Can I calculate multiple discounts on the same item?
How do I calculate sales tax on the discounted amount?
Can I compare two different shopping offers on one page?
Does it work offline during in-store shopping?
Make every calculation clear, editable, and reusable
Download FlexiCalc to model budgets, loans, quotes, and everyday decisions on pages that update with you.