Finance Calculators
Financial decisions have long-term consequences. A half-percent difference in mortgage rate can cost tens of thousands over the life of a loan. Not understanding compound interest means underestimating how much your savings can grow — or how fast debt accumulates. Our finance calculators cover the numbers that matter most: mortgage payments, compound growth, investment returns, loan payoffs, and retirement planning. Whether you are buying your first home, comparing loan offers, or building an emergency fund, these tools help you run the numbers before you commit your money.
254 calculators available
Blended Rate Calculator — Weighted Loan Interest Rate
Calculate the weighted average interest rate across multiple loans. Enter balances and rates to find your true blended borrowing cost.
Boat Loan Calculator — Estimate Monthly Payments
Calculate your monthly boat loan payment with APR, down payment, and term adjustments. See total interest and full cost instantly.
Bond Convexity Calculator — Measure Price Sensitivity
Calculate bond convexity to estimate price sensitivity to interest rate changes. Enter coupon, yield, maturity, and face value.
Bond Current Yield Calculator — Measure Annual Income
Calculate bond current yield from annual coupon rate, face value, and market price. See your real annual income return relative to what you actually paid.
Bond Equivalent Yield Calculator — Compare Bond Returns
Calculate the bond equivalent yield (BEY) to compare discount bonds with coupon-paying bonds on an annualized basis.
Bond Price Calculator — Estimate Bond Value
Calculate bond price from face value, coupon rate, yield to maturity, and years to maturity. See premium or discount instantly.
Bond Yield Calculator — Estimate Current Bond Returns
Calculate current bond yield from face value, coupon rate, and market price. Compare returns across bonds trading at premiums or discounts.
Bond YTM Calculator — Estimate Yield to Maturity
Calculate bond yield to maturity (YTM) with face value, price, coupon rate, and years to maturity inputs.
Bounce Rate Calculator — Analyze Website Engagement
Calculate your website's bounce rate from total sessions and single-page visits. Compare against benchmarks and find improvement areas.
Bradford Factor Calculator — Score Employee Absence
Calculate Bradford Factor scores to measure absence disruption. Spot patterns, set trigger thresholds, and benchmark team attendance.
Break-Even Calculator — Units to Cover Fixed Costs
Calculate how many units you need to sell to break even. Enter fixed costs, variable cost per unit, and selling price to find your break-even point.
Brexit Import Cost Calculator — Estimate Post-Brexit Fees
Calculate the total cost of importing goods to the UK from the EU after Brexit, including tariffs, VAT, and customs declaration fees.
Budget Calculator — Track Monthly Income and Expenses
Enter your monthly income and expenses to see your budget breakdown, savings rate, and spending health score at a glance.
Build Back Better Calculator — Estimate Your Benefits
Estimate your Build Back Better plan benefits including child tax credits and clean energy savings.
Build or Buy Calculator — Compare True Costs
Compare the real cost of building versus buying. Factor in materials, labor time, maintenance, and lifespan to make a data-driven decision.
Burn Rate Calculator — Track Startup Cash Runway
Calculate your monthly burn rate and cash runway. Enter starting and ending balances to see how long your funds will last.
Business Budget Calculator — Plan Revenue and Expenses
Project monthly net profit from revenue, fixed costs, variable costs, and savings targets. Adjust inputs to model different scenarios.
Business Days Calculator — Count Working Days
Calculate business days between two dates. Exclude weekends and holidays for project timelines, shipping estimates, and contract deadlines.