Free Online Business Calculators
Finance, invoices, freight, tax, deadlines and cross-border trade — free to use, no sign-up.
All Calculators
Browse 200+ business calculators for finance, invoices, freight, tax, deadlines, time, e-commerce, operations and cross-border trade.
View all calculatorsMost Used Business Calculators
All Business Calculator Categories
Finance
- ROI Calculator
- Break-Even Calculator
- NPV Calculator
- Margin Calculator
- Markup Calculator
- IRR Calculator
- Working Capital
- Depreciation Calculator
Invoice & Payment
- Invoice Due Date
- Real Due Date Calculator
- Invoice Late Fee
- Markup Calculator
- Commission Calculator
- Discount Calculator
- Payment Calculator
- Amortization Calculator
Freight & Logistics
- CBM Calculator
- Container Loading
- Pallet Calculator
- Chargeable Weight
- Shipping Cost Calculator
- Landed Cost Calculator
- Cargo Insurance
- Container Utilization
- Freight Density
Tax / VAT / GST
- VAT Calculator
- UK VAT Calculator
- US Sales Tax
- Germany VAT
- France VAT
- Australia GST
- Singapore GST
- Canada GST
- UAE VAT
Business Math & Statistics
- Percentage Calculator
- Percent Change
- Standard Deviation
- Sample Size Calculator
- Confidence Interval
- Ratio Calculator
- Mean Median Mode
- Z-Score Calculator
Deadline & Time
- Business Days Calculator
- Add Business Days
- Work Hours Calculator
- Decimal Hours
- Time Card Calculator
- Date Calculator
- Day Counter
- SLA Deadline Calculator
Cross-Border & Customs
- HS Code Duty Calculator
- Import Duty Calculator
- Landed Cost Calculator
- FOB vs CIF Calculator
- Customs Value
- Incoterms Cost Split
- Duties & Taxes Estimate
- Currency Conversion
E-commerce & Marketplace
- E-commerce Profit
- Amazon Fee Calculator
- TikTok Shop Fees
- Shopee Fee Calculator
- Shopify Profit
- ROAS Calculator
- Breakeven Ad ROAS
- CAC Calculator
- Conversion Rate
Inventory & Operations
- Inventory Turnover
- Reorder Point
- Safety Stock
- Economic Order Quantity
- Stockout Cost
- Holding Cost
- Warehouse Storage Cost
- Pick & Pack Cost
Construction & Facilities
- Concrete Calculator
- Roofing Calculator
- Tile Calculator
- Paint Calculator
- Flooring Calculator
- Gravel Calculator
- Mulch Calculator
- Square Footage
Recently Added Calculators
A-Z Calculator Index
Browse all 200+ calculators by name.
Popular Business Workflows
Invoice-to-cash
Track payment timelines from invoice issue to cash receipt.
Freight quote
Build accurate freight quotes from dimensions to cost.
Cross-border landed cost
Calculate total import cost including duty, freight and insurance.
E-commerce profitability
Determine true profit per unit after all marketplace costs.
Guides
Practical guides for customs, freight and landed cost
Learn how HS codes, import duty, VAT, landed cost, CBM, Incoterms and parcel costs work before using the calculators.
View all guides →About these calculators
Every calculator shows the formula, a worked example, and links to official sources. Country-specific tools are calibrated to local rates and holiday calendars for 40+ jurisdictions. All calculations run in your browser — nothing is stored or transmitted.