Run the numbers before work gets messy.
MegaLancer helps freelancers, founders, and small business owners price projects, send invoices, compare financial decisions, and protect client work.
Tools by category
Choose the area you are working on, then jump straight into a calculator or generator.
Freelancer
6 toolsRates, invoices, proposals, project estimates, and late fees.
Finance
23 toolsDebt payoff, mortgages, budgets, taxes, loans, and investing.
Legal
3 toolsContracts, NDAs, and plain-English contract summaries.
Math
27 toolsPercentages, conversions, dates, GPA, discounts, and time zones.
Health
6 toolsBMI, TDEE, sleep, water intake, pregnancy, and calories.
Marketing
2 toolsAd profit, ROAS, and hook analysis for campaigns.
SaaS
3 toolsMRR, SaaS pricing, and ROI calculators for founders.
Construction
2 toolsConcrete and jobsite math calculators for material planning.
Most useful tools
These are the tools that map to common high-intent searches and recurring freelancer pain points.
Freelancer Rate Calculator
Find the hourly, daily, and project rate that covers taxes, expenses, and downtime.
Get paidInvoice Generator
Create a clean invoice with payment terms, late-fee language, and PDF-ready formatting.
Overdue invoicesLate Fee Calculator
Calculate fair late-payment interest and total amount due from any invoice date.
Cash flowDebt Payoff Calculator
Compare avalanche and snowball payoff plans with extra-payment scenarios.
Big decisionsMortgage Calculator
Estimate payment, taxes, PMI, insurance, and amortization before you buy.
Client safetyContract Generator
Draft a freelance or business contract with scope, milestones, and payment terms.
Practical help for messy business moments
I do not know what to charge.
Use the rate calculator, salary-to-hourly converter, and pricing articles to price from your real costs instead of guessing.
Clients pay late or disappear.
Create clearer invoices, calculate late fees, and follow a calm reminder timeline.
Projects keep growing after the quote.
Use contracts, project estimates, milestones, and change-order language before work starts.
I need quick finance answers.
Compare loans, budget income, model debt payoff, and estimate taxes without opening a spreadsheet.
From the blog
Step-by-step articles for the questions people ask before they trust a calculator.
- Jun 9, 2026 How to Figure Out What to Charge as a Freelancer Freelancer
- Jun 9, 2026 The Real Financial Math of Leaving Your Job to Freelance Freelancer
- Jun 9, 2026 Overdue Invoice Email Templates That Actually Get You Paid Freelancer
- Jun 3, 2026 Freelance Contract Payment Terms and Invoice Payment Terms: Net 15, Net 30, Net 60 Freelancer
- Jun 3, 2026 How to stop scope creep before it eats your freelance profit Freelancer
- Jun 3, 2026 Late invoice email templates for freelancers Freelancer
Frequently asked questions
How do I calculate my freelance rate?
Start with your desired annual income, add your business expenses and tax burden, then divide by the number of billable hours you can realistically work in a year. Most freelancers use 1,000 billable hours (roughly 20 hours per week) rather than 2,000, because the rest goes to admin, marketing, and unpaid work. The freelancer rate calculator does this math for you and shows hourly, daily, and project rates.
What is a good hourly rate for a freelancer?
There is no single good rate � it depends on your expenses, target income, and market. A common baseline is to take the salary you want, add 30% for taxes and benefits, and divide by 1,000 billable hours. For example, an $80,000 target works out to roughly $80/hour minimum. The rate calculator factors in your specific costs and compares your rate to industry averages.
How much should I charge for a freelance project?
Estimate the hours each phase of the project will take, multiply by your hourly rate, and add a buffer for revisions and scope creep. A $5,000 website at $100/hour means roughly 50 hours of work. The project estimator breaks your work into phases, estimates hours per phase, and gives you a realistic total to include in your proposal.
How do I calculate mortgage payments?
Your monthly mortgage payment includes principal, interest, property taxes, homeowners insurance, and PMI if your down payment is under 20%. The mortgage calculator gives you the full monthly number including taxes and insurance so you see the real cost, not just the principal and interest payment.
How long will it take to pay off my debt?
It depends on your total balance, interest rate, minimum payment, and how much extra you put toward it each month. At the minimum payment, a $10,000 credit card balance at 18% APR takes over 20 years. Adding $100 per month cuts that to roughly 5 years. The debt payoff calculator compares avalanche and snowball strategies so you see exactly how long each debt will take at your chosen payment amount.
How do I calculate the percentage of a number?
Multiply the number by the percentage expressed as a decimal. To find 15% of $200, multiply 200 by 0.15 to get $30. For the reverse � what percent X is of Y � divide X by Y and multiply by 100. The percentage calculator handles both modes and also does percentage increase and decrease between any two numbers.
How do I convert inches to centimeters?
Multiply inches by 2.54 to get centimeters. A 12-inch ruler is 12 times 2.54, or 30.48 centimeters. Going the other way, divide centimeters by 2.54. The unit converter handles length, weight, temperature, volume, speed, area, and pressure all in one page, plus dedicated conversion pages for the 15 most common unit pairs.
Do I need a contract for freelance work?
Yes, for every project regardless of size. A one-page contract with scope, payment terms, deadlines, and revision limits prevents disputes and gives you leverage if a client refuses to pay. The contract generator builds a freelance contract tailored to your project type, so you have signed terms before you start working.