Coastline Open the calculator →
Free, real-numbers answers

Money & retirement guides

Real-numbers answers to the money questions people actually ask — retirement, FIRE, rent vs buy, paying off debt, investing — each backed by the same tax-aware engine as the full Coastline calculator. Pick a question, or run your own.

Comparing tools? See how Coastline stacks up against cFIREsim, Boldin, Empower & more →

Can I retire at this age with this much?

Retire at 40 with $1M →Retire at 45 with $1M →Retire at 50 with $1M →Retire at 55 with $1M →Retire at 58 with $1M →Retire at 60 with $1M →Retire at 62 with $1M →Retire at 65 with $1M →Retire at 67 with $1M →Retire at 45 with $500k →Retire at 50 with $500k →Retire at 55 with $500k →Retire at 60 with $500k →Retire at 62 with $500k →Retire at 65 with $500k →Retire at 67 with $500k →Retire at 55 with $750k →Retire at 60 with $750k →Retire at 65 with $750k →Retire at 45 with $1.5M →Retire at 50 with $1.5M →Retire at 55 with $1.5M →Retire at 60 with $1.5M →Retire at 65 with $1.5M →Retire at 45 with $2M →Retire at 50 with $2M →Retire at 55 with $2M →Retire at 58 with $2M →Retire at 60 with $2M →Retire at 62 with $2M →Retire at 65 with $2M →Retire at 55 with $2.5M →Retire at 60 with $2.5M →Retire at 45 with $3M →Retire at 50 with $3M →Retire at 55 with $3M →Retire at 60 with $3M →Retire at 50 with $5M →Retire at 55 with $5M →Retire at 60 with $5M →

How much do I need to retire?

Retire at 40 →Retire at 45 →Retire at 50 →Retire at 55 →Retire at 60 →Retire at 62 →Retire at 65 →Retire at 67 →On $40k/year →On $50k/year →On $60k/year →On $75k/year →On $100k/year →On $150k/year →

How long will my money last?

How long will $250k last? →How long will $300k last? →How long will $500k last? →How long will $750k last? →How long will $1M last? →How long will $1.5M last? →How long will $2M last? →How long will $3M last? →How long will $5M last? →

FIRE — retire early

Lean FIRE number →FIRE number →Fat FIRE number →FIRE on $40k/yr →FIRE on $50k/yr →FIRE on $60k/yr →FIRE on $75k/yr →FIRE on $100k/yr →FIRE on $125k/yr →FIRE on $150k/yr →FIRE on $200k/yr →FIRE on $250k/yr →FIRE on $300k/yr →Coast FIRE at 25 →Coast FIRE at 30 →Coast FIRE at 35 →Coast FIRE at 40 →Coast FIRE at 45 →Coast FIRE at 50 →Coast FIRE at 55 →

Rent vs buy a house

Rent vs buy a $200k home →Rent vs buy a $250k home →Rent vs buy a $275k home →Rent vs buy a $300k home →Rent vs buy a $325k home →Rent vs buy a $350k home →Rent vs buy a $375k home →Rent vs buy a $400k home →Rent vs buy a $450k home →Rent vs buy a $500k home →Rent vs buy a $550k home →Rent vs buy a $600k home →Rent vs buy a $650k home →Rent vs buy a $700k home →Rent vs buy a $750k home →Rent vs buy a $850k home →Rent vs buy a $900k home →Rent vs buy a $1M home →

Pay off debt or invest?

Pay off a 2.5% mortgage? →Pay off a 3% mortgage? →Pay off a 3.5% mortgage? →Pay off a 4% mortgage? →Pay off a 4.5% mortgage? →Pay off a 5% mortgage? →Pay off a 5.5% mortgage? →Pay off a 6% mortgage? →Pay off a 6.5% mortgage? →Pay off a 7% mortgage? →Pay off a 7.5% mortgage? →Pay off a 8% mortgage? →Pay off a 3% loan? →Pay off a 4% loan? →Pay off a 5% loan? →Pay off a 6% loan? →Pay off a 7% loan? →Pay off a 8% loan? →Pay off a 9% loan? →Pay off a 10% loan? →Pay off a 12% loan? →Pay off a 15% loan? →

Stock/bond allocation

Best allocation at 25 →Best allocation at 30 →Best allocation at 35 →Best allocation at 40 →Best allocation at 45 →Best allocation at 50 →Best allocation at 55 →Best allocation at 60 →Best allocation at 65 →

Student loan repayment

Best plan for $30k →Best plan for $40k →Best plan for $50k →Best plan for $60k →Best plan for $75k →Best plan for $100k →Best plan for $125k →Best plan for $150k →Best plan for $200k →Best plan for $250k →Best plan for $300k →
Run this with your real numbers
Model your own plan — every number, with the tax math behind it.
Open the free calculator →