Make smarter money, business, and growth decisions.
Use calculators, guides, examples, and decision checklists to understand loans, profit, ads, taxes, SaaS metrics, and startup finance.
Start here
What are you trying to decide today?
Pick your situation and get the right calculator, a worked example, and a decision checklist.
Can I afford this loan?
Compare monthly payments and total interest across lenders before signing anything.
Open hubIs my business actually profitable?
Calculate gross margin, break-even point, and ROI before setting prices or committing to costs.
Open hubAre my ads making money or burning cash?
Find your true ROAS, CAC, and break-even ad spend before scaling campaigns.
Open hubHow long will my startup runway last?
Model burn rate, months of cash, and what growth rate keeps you solvent.
Open hubWhat will my import really cost?
Calculate landed cost with duty, VAT, and shipping before placing the order.
Open hubHow much tax or salary will I keep?
Estimate take-home pay, VAT liability, or freelancer tax reserves in minutes.
Open hubMost used
Popular calculators
Advanced Loan EMI Calculator
Estimate monthly EMI, total interest, repayment schedule, and extra-payment impact for any loan.
mortgageMortgage Calculator with Amortization Schedule
Calculate mortgage payments, interest, payoff schedule, and yearly amortization summaries.
businessProfit Margin Calculator
Calculate gross profit, profit margin, markup, and price efficiency.
marketingROAS Calculator
Calculate return on ad spend and revenue efficiency.
saasSaaS MRR Calculator
Calculate monthly recurring revenue by plan, customers, and expansion.
aiAI Business Name Generator
Generate brandable business name ideas by industry and tone.
taxStripe Fee Calculator
Estimate Stripe fees, net payout, and gross-up amount.
financeCompound Interest Calculator
Project growth from principal, contribution, rate, and compounding frequency.
Decision hubs
Every financial decision has a hub
Each hub includes calculators, a worked example, common mistakes, and a decision checklist — not just a number.
Money
Compound interest, savings, debt payoff, retirement.
Explore hub 🏦Loans
EMI, mortgage, business loan, amortization.
Explore hub 📊Business
Profit margin, break-even, ROI, pricing, valuation.
Explore hub 📣Marketing
ROAS, CAC, CPL, conversion rate, ad ROI.
Explore hub 🚀Startup
Startup cost, runway, burn rate, cash flow.
Explore hub 📈SaaS
MRR, ARR, churn, LTV:CAC, NRR, runway.
Explore hub 🧾Tax
VAT, sales tax, salary, freelancer tax, fees.
Explore hub 💷Salary
UK & US take-home pay, contractor rate comparison.
Explore hub 📦Import
Duty, landed cost, de minimis thresholds.
Explore hubWhy CalcBix
More than just a number
Most calculator sites give you a result with no context. CalcBix is built for people who need to understand what the number means and what to do next.
Formula transparency
Every tool shows the formula it uses so you can verify results and understand what drives the number.
Honest disclaimers
We label what is an estimate, what requires verification, and when you should speak to a professional.
Instant, in the browser
No signup, no download. Type numbers, get results on any device — results update in real time.
Scenario comparison
Test conservative, base, and optimistic assumptions side by side before committing to a decision.
Built for real decisions
Tools are designed for founders, freelancers, marketers, and finance users — not just students.
Decision checklists
Every major calculator includes a decision checklist and "what this means" explanation — not just a number.
Who it's for
Built for real financial decisions
Whether you're a freelancer estimating taxes, a SaaS founder tracking churn, a marketer calculating ROAS, or a business owner checking break-even — CalcBix has a decision hub and calculator for your situation.
- Freelancers and independent contractors
- Small business owners and founders
- SaaS teams and startup operators
- Marketing agencies and growth teams
- Finance students and professionals
- E-commerce and import/export businesses
From calculation to action
Know your numbers.
Now act on them.
Use CalcBix to understand your financials, then use GrowbixAI to build your business page, capture leads, and automate follow-ups.
Calculate ROI
Know if the spend is worth it before committing.
Plan pricing
Test margins before you publish rates.
Model growth
See LTV, CAC, and runway at once.
Act with GrowbixAI
Build pages, capture leads, follow up.