Budget & Savings Calculators
8 tools in this collection — free, instant, and private in your browser.
Budget and savings calculators translate the abstract goal of financial wellness into specific monthly targets and timelines. Whether you are building a budget for the first time, trying to understand how your spending compares to recognized frameworks, or working toward a concrete goal like a house down payment, these tools provide the structure to make progress measurable.
The 50/30/20 Budget Calculator applies one of the most widely recommended personal budgeting frameworks: allocate 50 percent of after-tax income to needs, 30 percent to wants, and 20 percent to savings and debt repayment. Entering your income instantly shows the target dollar amounts for each category, giving you a benchmark to compare against your actual spending. The Paycheck Budget Calculator works at the paycheck level rather than the monthly level, which is useful if you are paid biweekly or weekly and prefer to budget against each deposit rather than a monthly average.
For shared households, the Monthly Expense Split Calculator divides expenses equitably among roommates or partners, either equally or proportionally to income, removing the friction of recurring financial conversations. The Cost of Living Comparison Calculator adjusts salaries and budgets across cities or regions, which is essential when evaluating a job offer in a different location or deciding where to relocate.
On the savings side, the Savings Goal Timeline Calculator answers the question of how long it will take to reach a target amount given your current monthly contribution and expected interest rate. The Save for a Down Payment Calculator applies this logic specifically to homebuying, accounting for the target price and required down payment percentage. The Sinking Fund Calculator works in the other direction: given a known future expense — a car repair, an annual insurance premium, a vacation — it tells you how much to set aside each month to be ready when the bill arrives. The Percent of Income Saved Calculator tracks your savings rate, a key metric that many financial planners consider more predictive of long-term wealth than income level alone.
Use the framework calculators to set spending targets, the timeline and goal calculators to plan specific milestones, and the split and comparison tools whenever living arrangements or location decisions introduce shared or geographic variables.
All budget & savings calculators
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| Tool | What it does |
|---|---|
| 50/30/20 Budget Calculator | Split your monthly take-home pay into needs (50%), wants (30%) and savings (20%) with the popular 50/30/20 budgeting rule. |
| Cost of Living Comparison Calculator | Compare the cost of living between two cities and find the equivalent salary you'd need to maintain the same standard of living. |
| Monthly Expense Split Calculator | Split shared monthly expenses such as rent and utilities among roommates or a household, including uneven shares. |
| Paycheck Budget Calculator | Budget around your paychecks: see your monthly income, how much of each paycheck covers fixed expenses, and what's left to spend or save. |
| Percent of Income Saved Calculator | Calculate your savings rate — the percentage of your income you save — plus what you spend and how much you save per year. |
| Save for a Down Payment Calculator | Calculate the down payment you need on a home and how long it will take to save it from your current balance and monthly contributions. |
| Savings Goal Timeline Calculator | Find out how many months and years it will take to reach a savings goal given your starting balance, monthly contribution and expected return. |
| Sinking Fund Calculator | Work out how much to set aside each month and week to cover a known future expense by its due date with a sinking fund. |
Frequently asked questions
- What is a sinking fund and how is it different from an emergency fund?
- A sinking fund is money you set aside gradually for a specific planned future expense, such as a car registration, holiday gifts, or an annual subscription. An emergency fund covers unexpected expenses that do not have a predictable timing or amount, such as a medical bill or job loss. Sinking funds are budgeted and intentional; emergency funds are a safety net for the unplanned. Both are held in savings, but they serve distinct purposes and should be tracked separately.
- What savings rate should I be targeting?
- Many financial planners recommend saving at least 20 percent of gross income, which aligns with the 50/30/20 rule. However, the right rate depends on your age, existing savings, retirement timeline, and goals. Someone starting to save in their 30s may need to save 25 to 30 percent to reach the same retirement outcome as someone who saved 15 percent starting in their 20s. The Percent of Income Saved Calculator makes it easy to see your current rate and experiment with how increasing it by a few percentage points changes your long-term trajectory.
- How should I split expenses with a roommate if our incomes are different?
- There are two common approaches: equal split, where each person pays half regardless of income, and proportional split, where each person pays a percentage equal to their share of total household income. Equal splits are simpler and avoid the need to share income information. Proportional splits are considered more equitable when there is a significant income gap. The Monthly Expense Split Calculator supports both methods, letting you enter incomes and total expenses to see the dollar amount each person would owe under either approach.