Contract to Permanent Salary Calculator
Use this calculator to estimate what permanent base salary would be roughly equivalent to your current contract compensation after overhead and expenses.
How a contract-to-perm conversion really works
Moving from contract work to a permanent role is not just an hourly-rate-to-salary conversion. Contractors are usually paid only for billed hours and often absorb expenses that full-time employees do not directly pay. Permanent employees, in contrast, get paid during holidays, vacation, sick days, and may receive insurance, retirement match, and bonus eligibility.
That means a lower-looking base salary can still be financially competitive once total compensation is considered. On the other hand, some permanent offers are genuinely below market and should be negotiated. The goal is to compare economic value, not just one number.
What this calculator includes
- Contract annual gross: hourly rate × hours per week × paid contract weeks.
- Overhead/tax drag: a percentage reduction for non-billable burden.
- Contract expenses: direct yearly costs such as insurance, tools, and accounting.
- Permanent comp components: base salary, bonus, benefits value, retirement match, and PTO value.
Formula summary
First, we estimate your contract net value:
Contract Net Value = Contract Gross − (Contract Gross × Overhead %) − Annual Expenses
Then we estimate the permanent total-comp multiplier:
Multiplier = 1 + Bonus % + Benefits % + Match % + (PTO days / 260)
Finally:
Equivalent Permanent Base Salary = Contract Net Value / Multiplier
How to use this during negotiation
1) Start with your realistic contract economics
If your hourly rate is high but you average fewer than 52 paid weeks, account for that honestly. Also include equipment, software, and insurance costs you currently pay yourself.
2) Estimate a fair benefits value
Many employers’ benefit packages are worth 15% to 30% of salary depending on healthcare, retirement match, payroll tax burden, and additional perks. If uncertain, run a low and high scenario.
3) Ask for total package details before deciding
- Base salary
- Bonus target and payout history
- Healthcare premium split and deductible
- Retirement match formula and vesting
- PTO policy and paid holidays
- Equity grants or RSUs (if applicable)
When it can make sense to accept a lower base
A lower base can still be rational if the role offers stronger long-term upside, reduced risk, better work-life balance, and meaningful career development. Common examples include:
- Stable income with less downtime risk
- Promotion track or leadership scope unavailable in contract work
- High-value health coverage for family needs
- Retirement match and paid leave that improve total value
Common mistakes to avoid
- Comparing hourly contract rate directly to salary without adjusting for paid weeks.
- Ignoring contractor expenses and unpaid admin time.
- Overvaluing bonus at 100% certainty when payouts are not guaranteed.
- Forgetting that PTO is paid time and therefore part of compensation value.
- Accepting an offer before seeing full benefits documentation.
Final takeaway
If you are evaluating a contract-to-perm offer, think in terms of equivalent total compensation and risk profile, not just paycheck optics. Use this calculator to anchor your decision, then pair the numbers with your career goals, stability preferences, and growth opportunities.