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Home / Compare / 401(k) Employer Match Calculator vs Solo 401(k) Calculator

401(k) Employer Match Calculator vs Solo 401(k) Calculator

Both 401(k) Employer Match Calculator and Solo 401(k) Calculator sit in the Investing & FIRE category. They share an underlying model (per pay period match cap with annual reconciliation) but target different outcomes: 401(k) Employer Match on one side, Solo 401(k) on the other.

401(k) Employer Match Calculator and Solo 401(k) Calculator comparison illustration

Photo: Maxim Hopman on Unsplash

The two tools at a glance

401(k) Employer Match Calculator

401(k) Employer Match Calculator computes 401(k) employer match directly in your browser. It is built for tuning contribution rate to capture every match dollar and uses per pay period match cap with annual reconciliation based on the inputs you provide.

Use it when

  • Projecting a portfolio value at a future date
  • Stress testing a withdrawal plan in retirement
  • Comparing two contribution rates over decades
Math model. Compound growth with inflation deflation.
Open 401(k) Employer Match Calculator

Solo 401(k) Calculator

Solo 401(k) Calculator computes solo 401(k) directly in your browser. It is built for projecting a 401(k) balance to retirement age and uses compound growth with annual contribution and employer match based on the inputs you provide.

Use it when

  • Projecting a portfolio value at a future date
  • Stress testing a withdrawal plan in retirement
  • Comparing two contribution rates over decades
Math model. Compound growth with inflation deflation.
Open Solo 401(k) Calculator

Side by side: every attribute

Attribute401(k) Employer Match CalculatorSolo 401(k) Calculator
CategoryInvesting & FIREInvesting & FIRE
Primary inputSalary, employee deferral %, employer match formula401(k) balance, contribution rate, employer match, salary, return
Primary outputMatch dollars captured, dollars left on the tableFuture value at retirement, contributions vs growth split
Math modelPer pay period match cap with annual reconciliationCompound growth with annual contribution and employer match
Best forTuning contribution rate to capture every match dollarProjecting a 401(k) balance to retirement age
Runs in browserYes, no data leaves your deviceYes, no data leaves your device
Login requiredNoNo
CostFreeFree

How they differ

Under the hood, 401(k) Employer Match Calculator uses per pay period match cap with annual reconciliation fed by salary, employee deferral %, employer match formula. Solo 401(k) Calculator uses compound growth with annual contribution and employer match fed by 401(k) balance, contribution rate, employer match, salary, return. The two are not substitutes; they answer adjacent questions in your workflow.

Pick 401(k) Employer Match Calculator when your question is about 401(k) employer match and your inputs are salary, employee deferral %, employer match formula. Pick Solo 401(k) Calculator when the question shifts to solo 401(k) and your inputs become 401(k) balance, contribution rate, employer match, salary, return. If neither matches what you need, the Investing & FIRE category hub lists every tool we have for related questions.

Which one should you use?

Choose 401(k) Employer Match Calculator if

Your task is long horizon planning and retirement targets and you already have contribution, return, time horizon, inflation. The output you need is a future value, withdrawal amount, retirement age.

Choose Solo 401(k) Calculator if

Your task is long horizon planning and retirement targets and you have contribution, return, time horizon, inflation. The output you need is a future value, withdrawal amount, retirement age.

Neither fits?

Browse the Investing & FIRE hub for related tools, or the Investing & FIRE hub for the other side.

Frequently asked questions

What is the difference between 401(k) Employer Match Calculator and Solo 401(k) Calculator?

401(k) Employer Match Calculator is designed to answer questions about 401(k) employer match using salary, employee deferral %, employer match formula. Solo 401(k) Calculator is designed for solo 401(k) using 401(k) balance, contribution rate, employer match, salary, return. They are complementary tools that target different inputs and outputs.

When should I use 401(k) Employer Match Calculator?

Use 401(k) Employer Match Calculator when your task is tuning contribution rate to capture every match dollar and you need a match dollars captured, dollars left on the table from salary, employee deferral %, employer match formula.

When should I use Solo 401(k) Calculator instead?

Use Solo 401(k) Calculator when the question is projecting a 401(k) balance to retirement age and your inputs are 401(k) balance, contribution rate, employer match, salary, return. The result is a future value at retirement, contributions vs growth split.

Are 401(k) Employer Match Calculator and Solo 401(k) Calculator free?

Yes. Both run entirely in your browser, require no login, and are free to use without limits. Your inputs are not transmitted to any server.

Is one more accurate than the other?

Accuracy depends on the inputs you provide, not on the tool. 401(k) Employer Match Calculator uses per pay period match cap with annual reconciliation and is accurate for 401(k) employer match when its inputs are correct. Solo 401(k) Calculator uses compound growth with annual contribution and employer match and is accurate for solo 401(k) under the same condition.

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