Finance Tools

Finance Calculators

Six free personal finance calculators: project investment growth, measure purchasing power changes with BLS CPI data, calculate RMDs under SECURE 2.0, compare student loan repayment plans, convert salary to hourly rates, and track inflation-adjusted pay.

Compound Interest Calculator

Investment growth with compounding and contributions

BLS CPI-U Inflation Calculator

CPI purchasing power 1913–2025

Required Minimum Distribution (RMD) Calculator

Required minimum distribution (SECURE 2.0, age 73)

Student Loan Repayment & Payoff Calculator (2026)

Standard, IBR, and PSLF repayment comparison

Salary to Hourly Calculator

Annual salary converted to hourly and all pay periods

Purchasing Power & Inflation-Adjusted Salary Calculator

Inflation-adjusted salary using BLS CPI-U data

Key facts for 2026

Compound interest: $10,000 at 7% monthly compounding grows to $20,097 after 10 years — without any additional contributions.
Inflation: $100 in 2000 equals about $187 in 2025 — an 87% cumulative price increase, or 2.53% per year on average (BLS CPI-U).
RMD starting age: SECURE 2.0 raised the required beginning date to age 73 for those born 1951–1959. The age increases to 75 starting in 2033.

Related guides

Compound Interest Fundamentals
Understanding compound interest and its power

Purchasing power: the inflation, purchasing-power, and compound-interest tools are collected on the purchasing-power hub.