Free Online Business Calculators
for Finance, Freight, Invoices, Tax & Time
Calculate ROI, working capital, invoice due dates, VAT/GST, CBM, freight costs, working days and time cards — then copy results or reusable links into your business workflow.
Browse 100+ calculators for finance, freight, invoices, tax and time.
Choose a calculator area
Pick the type of calculation you need.
100+
Business calculators
40+
Countries covered
100%
Browser-based
No
Sign-up needed
Use UtilityPilot like an app
Keep your business calculators one click away. Pin your most-used tools, reopen recent calculators, and return without searching Google.
Workflow integration
Built for business workflow integration
UtilityPilot results are designed to leave the calculator. Copy a formatted output into an SOP, paste a reusable link into a CRM note, or drop a result straight into a spreadsheet or team message — every tool produces output you can act on immediately.
Calculate
Run the exact calculation your workflow needs — invoice due dates, CBM, VAT, working days, ROI, margins and more. Country-specific rates and holiday calendars included.
Copy
Copy a formatted result, a shareable link, or a client-ready note. Every output is structured for reuse — not just a raw number.
Integrate
Paste into SOPs, spreadsheets, CRM notes, Slack, Notion, Jira or email templates. Bookmark a reusable link so your team can run the same calculation next time.
Workflow advantage
Calculate once. Reuse everywhere.
UtilityPilot does more than show a number. Copy useful results into SOPs, spreadsheets, CRM notes, Slack, Notion, client emails or team checklists.
Invoice workflow
Calculate VAT, due date and real payment date, then copy a client-ready note.
Freight quote workflow
Calculate CBM, shipping deadline and margin before quoting.
Deadline workflow
Count working days, adjust for weekends and copy the deadline note.
Use UtilityPilot like an app
Install UtilityPilot and keep VAT, working days, invoice dates, CBM, margin and workflow calculators one click away.
- Pin your most-used calculators
- Return without searching Google
- Works in your browser
- No account required
What is UtilityPilot?
Built for business workflows, not one-off calculations
UtilityPilot is a free set of calculators designed around the tasks finance, operations, and logistics teams carry out as part of their everyday work — not generic arithmetic tools that happen to be online.
The tools cover the calculations that come up repeatedly in real business contexts: working out VAT on a B2B invoice, finding when a Net 30 payment is due, checking how many business days remain before an SLA expires, converting carton dimensions into CBM for a freight quote, or turning timesheet hours into decimal format for payroll.
Each calculator shows the formula used and a worked example, so the result is auditable — useful in finance checklists, operations SOPs, logistics sheets, and CRM notes, not just one-time lookups. Tax rates and public holiday data come from official government sources and are reviewed regularly.
Coverage spans over 40 countries with country-specific VAT rates, holiday calendars, and working week patterns. Everything runs in your browser — nothing is stored or transmitted.
Who uses UtilityPilot
Finance teams
Checking invoice due dates, calculating VAT on cross-border transactions, and tracking overdue payment timelines.
Operations managers
Counting business days for SLA tracking, project milestones, notice periods, and contract deadlines.
Logistics & procurement
Calculating shipping CBM for freight quotes, estimating delivery dates, and planning supplier lead times.
Ecommerce sellers
Calculating landed costs with margin, working out GST or VAT for international markets, and managing shipping cut-offs.
HR & payroll
Converting hours to decimal for payroll, calculating total shift hours, and counting working days for leave periods.
What makes UtilityPilot different
A business workflow hub, not a generic calculator directory
UtilityPilot is built around the calculations that come up in real business tasks — invoicing, freight, payroll, deadlines, pricing, tax — not one-off sums. Every tool links to the next step in the workflow so you can work through a task from start to finish without switching tools.
Focused on business use cases
Finance, invoicing and payments, logistics and freight, working days and deadlines, tax / VAT / GST, time and payroll — every tool solves a real business problem, not a generic arithmetic task.
Organised by workflow, not generic categories
Calculators are grouped by the task you are doing — send an invoice, quote a shipment, manage a deadline — so the tools you need are always next to each other.
Reusable results for SOPs and team workflows
Copy results into SOPs, spreadsheets, CRMs, Slack or Teams messages, Notion pages and client email templates. The output is formatted for reuse, not just one-time reading.
Formula and worked example on every page
Every calculator shows the formula used and a step-by-step worked example, so results are auditable and explainable — useful for checklists, reports and client-facing documents.
Country-specific rates and holiday calendars
VAT rates, GST rates, public holidays and working week patterns are calibrated per country — not generic approximations. Over 40 countries covered.
Browser-based and no sign-up required
Open any tool and calculate instantly. No account, no email, no paywall. All calculations happen locally — nothing you enter is stored or transmitted.
Most Used
Tools you'll use today
Click any tool — results appear immediately, no setup needed.
How many working days between two dates?
e.g. Mon 3 Mar → Fri 28 Mar = 19 business days
Add or remove UK VAT in one step.
e.g. £4,500 net + 20% VAT = £5,400 gross
When is this invoice actually due?
e.g. Invoice 3 Mar · Net 30 → due 2 Apr
See your gross margin before you quote.
e.g. Cost £60 · sell £100 = 40% margin
Get your sea freight volume for an LCL quote.
e.g. 3 carton sizes · 80 units → 7.08 m³
Total shift hours with break deduction.
e.g. 8:30–17:00 minus 45 min = 7 h 45 min
Invoice, SLA and shipping deadlines adjusted for weekends and holidays.
e.g. Net 30 invoice → real payable date
Set a sell price from cost plus markup %.
e.g. Cost £60 + 67% markup = £100 sell price
Business days with UK bank holidays excluded.
e.g. avoids all 8 England & Wales bank holidays
I need to…
Start from what you're doing
Pick a task — each card links directly to the tools you need, in order.
Send an invoice
InvoicingQuote a shipment
LogisticsManage a deadline
OperationsChase an invoice
FinancePrice a product
PricingCheck a tax rate
TaxFast answers
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Business calculator clusters
Choose a business calculator by workflow
Start with finance, invoicing, logistics, deadlines, tax or time — then open the calculator that fits the task.
Finance & Business
ROI, working capital, break-even, loans, margins and commercial planning.
Invoicing & Payments
Invoice terms, due dates, late fees and payment deadline calculation.
Logistics & Freight
CBM, pallets, dimensional weight, chargeable weight, containers and freight cost.
Deadlines & Working Days
Business days, real due dates, shipping deadlines and transit timing.
Time & Work
Time cards, decimal hours, work hours and payroll or billing checks.
Tax / VAT / GST
VAT, GST and sales tax calculations for business pricing and invoices.
Browse by Region
Tools for your market
Country-specific VAT rates, public holidays, and working week patterns.
Why UtilityPilot
Accurate, fast, and private
Every calculator shows its formula, a worked example, and a step-by-step guide.
No sign-up required
Open any tool and calculate instantly — no account, email, or friction.
Nothing leaves your browser
All calculations happen locally. Nothing you enter is transmitted or stored.
Formula shown on every page
Every result includes the calculation method — no black boxes.
Localised per country
VAT rates, public holidays, and working weeks calibrated per country.
Built for real workflows
Designed for finance, ops, ecommerce, and logistics teams.
Worked examples included
Every calculator includes a step-by-step example to verify your inputs.
Questions
Frequently asked
Common questions about how UtilityPilot works and what the tools cover.
Are all the calculators free?
Yes. Every tool on UtilityPilot is completely free — no registration, no paywalls, no usage limits.
Do I need to create an account?
No. All calculators work instantly without signing up. Open any page and start calculating.
How accurate are the results?
All calculations use verified formulas shown on each page. Tax rates and holidays are sourced from official government sources. For legally binding figures, verify with a qualified professional.
Can I use these tools on mobile?
Yes. UtilityPilot is fully responsive and works well on phones, tablets, and desktops.
Do the calculators store my data?
No. All calculations happen entirely in your browser. Nothing you enter is stored or sent anywhere.
Which countries are covered?
Over 40 countries across Europe, APAC, North America, the Middle East, South America, and Africa.
Practical use
Use these calculators in everyday business workflows
These tools are designed to sit inside real working processes — not just for one-off lookups. Finance teams embed the Invoice Due Date Calculator in accounts receivable SOPs. Operations managers link the Business Days Calculator in project checklists. Logistics coordinators drop the CBM Calculator result into freight quote spreadsheets.
Finance checklists & AR workflows
Add Invoice Due Date and Real Due Date Calculator links to your accounts receivable checklist or CRM deal notes. The copyable follow-up note on each page makes it easy to paste results directly into client emails or payment chasers.
Logistics sheets & freight quotes
Run the CBM Calculator before requesting LCL quotes. Use the Shipping Deadline Calculator to confirm delivery windows and add them to shipment tracking sheets. Cross-check margins with landed cost before finalising a supplier order.
Payroll, billing & timesheet processing
Use the Decimal Hours Calculator to convert HH:MM timesheet entries before pasting into payroll systems. Use Work Hours Calculator to total a shift first. Link both in your payroll SOP or Slack channel pinned tools.
SLA and deadline management
Paste the SLA Deadline Calculator link into service desk ticket templates or Jira fields. Use Real Due Date Calculator for contract milestones that must fall on a business day. Add Business Days Calculator to project planning dashboards.
Pricing, invoicing & VAT compliance
Use the VAT Calculator to build invoice line items. Check gross margin before quoting with the Margin Calculator. Use Markup Calculator to price from cost-plus. All three link naturally in a sales or pricing workflow.
Cross-border and multi-country operations
VAT rates, public holidays, and working weeks differ by country. Use country-specific calculators for accurate numbers in each market. Results are safe to copy into client templates and regional SOPs.
Start calculating now
Every tool is free, browser-based, and ready to use — no account, no paywalls. Need a tool we don't have? Suggest one.
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