Compound Interest Calculators

Main calculators

The core pages cover the general case, monthly deposits, a lump sum and inflation.

• Compound interest calculator
• Compound interest with monthly contributions
• Lump sum compound interest calculator
• Inflation-adjusted compound interest calculator

Lump sum by amount and years

One deposit left alone to grow, shown for seven amounts over seven time spans.

• $1,000 compound interest over 5 years
• $1,000 compound interest over 10 years
• $1,000 compound interest over 15 years
• $1,000 compound interest over 20 years
• $1,000 compound interest over 25 years
• $1,000 compound interest over 30 years
• $1,000 compound interest over 40 years
• $2,500 compound interest over 5 years
• $2,500 compound interest over 10 years
• $2,500 compound interest over 15 years
• $2,500 compound interest over 20 years
• $2,500 compound interest over 25 years
• $2,500 compound interest over 30 years
• $2,500 compound interest over 40 years
• $5,000 compound interest over 5 years
• $5,000 compound interest over 10 years
• $5,000 compound interest over 15 years
• $5,000 compound interest over 20 years
• $5,000 compound interest over 25 years
• $5,000 compound interest over 30 years
• $5,000 compound interest over 40 years
• $10,000 compound interest over 5 years
• $10,000 compound interest over 10 years
• $10,000 compound interest over 15 years
• $10,000 compound interest over 20 years
• $10,000 compound interest over 25 years
• $10,000 compound interest over 30 years
• $10,000 compound interest over 40 years
• $25,000 compound interest over 5 years
• $25,000 compound interest over 10 years
• $25,000 compound interest over 15 years
• $25,000 compound interest over 20 years
• $25,000 compound interest over 25 years
• $25,000 compound interest over 30 years
• $25,000 compound interest over 40 years
• $50,000 compound interest over 5 years
• $50,000 compound interest over 10 years
• $50,000 compound interest over 15 years
• $50,000 compound interest over 20 years
• $50,000 compound interest over 25 years
• $50,000 compound interest over 30 years
• $50,000 compound interest over 40 years
• $100,000 compound interest over 5 years
• $100,000 compound interest over 10 years
• $100,000 compound interest over 15 years
• $100,000 compound interest over 20 years
• $100,000 compound interest over 25 years
• $100,000 compound interest over 30 years
• $100,000 compound interest over 40 years

Monthly deposits

Regular deposits of different sizes over 10, 20 and 30 years starting from nothing.

• $50 a month for 10 years at 6 percent
• $50 a month for 20 years at 6 percent
• $50 a month for 30 years at 6 percent
• $100 a month for 10 years at 6 percent
• $100 a month for 20 years at 6 percent
• $100 a month for 30 years at 6 percent
• $200 a month for 10 years at 6 percent
• $200 a month for 20 years at 6 percent
• $200 a month for 30 years at 6 percent
• $300 a month for 10 years at 6 percent
• $300 a month for 20 years at 6 percent
• $300 a month for 30 years at 6 percent
• $500 a month for 10 years at 6 percent
• $500 a month for 20 years at 6 percent
• $500 a month for 30 years at 6 percent
• $750 a month for 10 years at 6 percent
• $750 a month for 20 years at 6 percent
• $750 a month for 30 years at 6 percent
• $1,000 a month for 10 years at 6 percent
• $1,000 a month for 20 years at 6 percent
• $1,000 a month for 30 years at 6 percent
• $1,500 a month for 10 years at 6 percent
• $1,500 a month for 20 years at 6 percent
• $1,500 a month for 30 years at 6 percent

By rate of return

The same deposit and time at returns from 3 to 10 percent.

• $250 a month at 3 percent
• $250 a month at 4 percent
• $250 a month at 5 percent
• $250 a month at 6 percent
• $250 a month at 7 percent
• $250 a month at 8 percent
• $250 a month at 9 percent
• $250 a month at 10 percent

Inflation

The buying power of a balance after prices rise by 2, 3, 4 or 5 percent a year.

• 2 percent inflation over 10 years
• 2 percent inflation over 20 years
• 2 percent inflation over 30 years
• 3 percent inflation over 10 years
• 3 percent inflation over 20 years
• 3 percent inflation over 30 years
• 4 percent inflation over 10 years
• 4 percent inflation over 20 years
• 4 percent inflation over 30 years
• 5 percent inflation over 10 years
• 5 percent inflation over 20 years
• 5 percent inflation over 30 years

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