Career & Freelance Calculators

Salary converter, freelance rate, job offer compare and side hustle profit.

Rate math for people who sell their time: freelance hourly rates, salary conversions, job-offer comparison, side-hustle margins. Each calculator shows the overhead and utilization assumptions behind the numbers, because a rate that ignores unpaid admin is a pay cut.

Salary Converter

Convert between hourly, monthly, annual salary

Salary Negotiation Calculator

Calculate lifetime value of negotiating salary

Pay Raise Calculator

Calculate new salary after a raise

Income Tax Bracket Calculator

Calculate effective tax rate

Freelance Hourly Rate

Calculate freelance hourly rate

Freelance Project Fee

Calculate project-based fees

Contractor vs Employee Rate

Compare contractor vs employee rates

Overtime Pay Calculator

Calculate overtime pay earnings

Bonus & Commission Calculator

Calculate bonus and commission pay

Gender Pay Gap Calculator

Calculate pay gap between colleagues

401k Match Calculator

Calculate 401k employer match value

Stock Options Value Calculator

Calculate stock option value

Side Hustle Income Calculator

Calculate side hustle earnings

Cryptocurrency Tax Calculator

Estimate crypto capital gains tax

Career Gap Impact Calculator

Calculate financial impact of a career gap

Remortgage Savings Calculator

Calculate savings from remortgaging at lower rate

Mortgage Affordability Checker

Check if you can afford a mortgage

Tax Refund Estimator

Estimate income tax refund

Invoice Total Calculator

Calculate invoice total with tax and discounts

Self-Employed Tax Calculator

Calculate self-employment tax

Sales Commission Calculator

Calculate sales commission earnings

Freelance Monthly Budget

Budget as a freelancer for taxes and expenses

Redundancy Pay Calculator

Calculate statutory redundancy pay

Self-Employment Tax

SE tax and effective rate for freelancers

Freelance Daily Rate

Equivalent daily rate from salary

Freelance Monthly Goal

Billable hours needed to hit income goal

Retirement Contribution Impact

Effect of extra retirement contributions

Benefits Package Value

Real value of your benefits

PTO Accrual Calculator

Paid time off accrual and balance

Job Offer Comparison

Compare two job offers by total value

Cost of Living Adjustment

Salary needed in a new city

Severance Calculator

Estimate severance pay

Side Hustle Profit

True hourly profit of a side hustle

Salary Raise Worth

Net value of a raise over time

Work-from-Home Savings Calculator

Money saved by not commuting

Stock Vesting Calculator

Shares vested on a cliff-and-graded schedule

Vacation Accrual Calculator

Days banked at an annual rate over months worked

Timesheet Decimal Converter

Convert hh:mm entries to decimal hours

Shift Differential Calculator

Premium pay for nights or weekends

About CalcProMaster calculators

CalcProMaster is a free library of 1206 online calculators across 20 categories — finance, health, math, business, construction, engineering, conversion, education and more. Every calculator runs entirely in your browser: no sign-up, no paywall, and no data leaves your device.

What makes these calculators different is transparency. Each tool shows the exact formula it uses and a step-by-step breakdown of how your inputs become the result, so you can verify the math instead of trusting a black box. Result interpretation, common mistakes, assumptions and limitations are documented on every calculator page, alongside worked examples and an FAQ. Health and finance tools cite the standard formulas they follow — Mifflin-St Jeor for calorie needs, standard amortization for loans — and state plainly where a calculator's answer should be confirmed with a professional.

The guides library goes deeper on the calculations people search for most: percentage and discount math, loan EMI and amortization, income-tax brackets, calorie and macro planning, concrete volumes and more — each with the formula, worked examples and links to the matching calculator. The glossary defines the terminology in plain language, and the public formula QA dashboard shows the verification status of every calculator's math.

Popular starting points: loan EMI calculator, BMI calculator, percentage calculator, random number generator, and concrete calculator — or browse a category above to find the tool you need.

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