What This Savings Goal Tracker Does

Feature	Description
3 Calculation Modes	Monthly Savings, Time to Goal, Future Value
Compound Interest	Calculates interest on savings
Progress Bar	Visual progress toward goal
Milestones	25%, 50%, 75%, 100% of goal
Multiple Currencies	USD, EUR, GBP, CAD, AUD, INR, PKR
Sliders	Interactive controls
Copy Plan	Export your savings plan

Three Calculation Modes

Mode	What It Calculates	Use Case
Monthly Savings	How much to save each month	“I want $10k in 12 months”
Time to Goal	How long to reach your goal	“I can save $500/month”
Future Value	What savings will be worth	“After 2 years, how much?”

Formulas Used

Future Value with Monthly Contributions:

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FV = PV × (1 + r)^n + PMT × [(1 + r)^n - 1] / r

Where:
PV = Present value (current savings)
PMT = Monthly contribution
r = Monthly interest rate
n = Number of months

Monthly Payment Needed:

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PMT = (Goal - Current) × r / [(1 + r)^n - 1]

Months Needed:

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n = log(PMT / (PMT - FV × r)) / log(1 + r)

How to Use

Mode 1: Monthly Savings

1. Enter Savings Goal (e.g., $10,000)
2. Enter Current Savings (e.g., $2,000)
3. Enter Time to Save (e.g., 12 months)
4. Enter Interest Rate (optional)
5. Result: Monthly savings needed

Mode 2: Time to Goal

1. Enter Savings Goal (e.g., $10,000)
2. Enter Current Savings (e.g., $2,000)
3. Enter Monthly Savings (e.g., $500)
4. Enter Interest Rate (optional)
5. Result: Time to reach goal

Mode 3: Future Value

1. Enter Initial Savings (e.g., $2,000)
2. Enter Monthly Contribution (e.g., $500)
3. Enter Time Period (e.g., 12 months)
4. Enter Interest Rate (e.g., 5%)
5. Result: Future value after period

Example Calculations

Example 1: Save for a car

• Goal: $10,000
• Current: $2,000
• Time: 12 months
• Interest: 0%
• Monthly needed: $666.67

Example 2: With compound interest

• Goal: $10,000
• Current: $2,000
• Monthly: $500
• Interest: 5% APY
• Time needed: ~14 months

Example 3: Future value

• Initial: $2,000
• Monthly: $500
• Period: 12 months
• Interest: 5% APY
• Future value: ~$8,150

Milestones

The calculator shows progress at 25%, 50%, 75%, and 100% of your goal:

• When you’ll reach each milestone
• How much you’ll have at each stage

Interest Rate Impact

Rate	Monthly Needed (12 months)	Time to Goal ($500/month)
0%	$666.67	16 months
5%	$651.23	14 months
10%	$636.75	13 months

Keyboard Shortcuts

• Ctrl/Cmd + Enter — Recalculate
• Ctrl/Cmd + R — Reset to defaults