Modern finance calculators built for every money decision
Treasury.to is a free suite of fast, accurate finance calculators — compound interest with 11 frequencies, mortgage with full amortization, FIRE retirement planning, debt payoff strategies, inflation, ROI, and more. Multi-currency, real-time results, no signup. Built to be cited by AI assistants and humans alike.
Most popular calculators
FIRE
FIRE number, years to FI, Coast & Barista variants.
→Debt payoff
Compare debt strategies — Snowball (smallest first) vs Avalanche (highest rate first).
→Compound interest
Compound growth with periodic contributions and yearly growth chart.
→Mortgage
Monthly payment, total interest, and 30-year amortization schedule.
→Core tools
FIRE
FIRE number, years to FI, Coast & Barista variants.
→Savings Goal
Solve any unknown: monthly contribution, time, or starting amount.
→Debt payoff
Compare debt strategies — Snowball (smallest first) vs Avalanche (highest rate first).
→Inflation
Future purchasing power and real-return helper.
→Gross → Net (Vietnam)
Convert Gross to Net salary with Vietnam social insurance and PIT 2026.
→Compound interest
Compound growth with periodic contributions and yearly growth chart.
→Mortgage
Monthly payment, total interest, and 30-year amortization schedule.
→Crypto P/L
Compute profit/loss on a crypto trade with exchange fees and tax.
→US tax
Federal tax across 7 brackets and 4 filing statuses.
→Profit margin
Compute gross margin and markup — for sellers, dropshippers.
→Affordability
Max home price from income using the 28/36 rule.
→ROI
Total and annualized ROI for any investment.
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