Mini Tools Collection
Useful one-page tools for real work
ToolPatch is a growing collection of focused utilities. Each page handles one task with clear inputs, fast results, and practical outputs.
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Personal
Featured
Debt Payoff Calculator
Estimate months to pay off debt and total interest cost.
Model payoff timelines from balance, APR, and monthly payment assumptions. Great for personal budgeting and debt reduction planning.
Personal
Featured
Savings Goal Calculator
Find required monthly savings contribution to reach a target goal.
Plan a target amount with current savings, time horizon, and expected return.
Personal
Age Calculator
Calculate age in years, days, and weeks from birth date.
Simple date-based age computation for personal and admin use.
Personal
Tip Calculator
Calculate tip amount, total bill, and per-person split.
Quickly split restaurant bills with configurable tip percentage and party size.