SKSolveKit

34 free tools · 6 data series

Finance tools

Plan loans, investments, pricing, taxes, and everyday money decisions.

Mortgage Calculator

Estimate monthly mortgage payments, total interest, and total repayment cost.

Finance

Loan Calculator

Calculate a loan payment schedule from principal, rate, and term.

Finance

Compound Interest Calculator

Project investment growth with regular compounding and contributions.

Finance

Simple Interest Calculator

Find simple interest and final balance for any principal and term.

Finance

Savings Goal Calculator

Work out the monthly deposit needed to reach a savings target.

Finance

Investment Return Calculator

Measure investment gain, return percentage, and annualized performance.

Finance

ROI Calculator

Calculate return on investment and net return from what something cost and what it returned.

Finance

Profit Margin Calculator

Calculate profit, markup, and gross margin from cost and revenue.

Finance

Discount Calculator

Find the sale price and amount saved after one or two discounts.

Finance

Sales Tax Calculator

Add or remove sales tax from any price.

Finance

Tip Calculator

Split a bill and tip fairly between any number of people.

Finance

Salary to Hourly Calculator

Convert annual salary into hourly, daily, weekly, and monthly pay.

Finance

Hourly to Salary Calculator

Convert an hourly rate into weekly, monthly, and annual earnings.

Finance

Monthly to Yearly Salary Calculator

Convert monthly pay into yearly, biweekly, and weekly earnings, including part-year schedules.

Finance

Time and a Half Calculator

Work out your overtime hourly rate and the extra pay it adds per week and per year.

Finance

Break-even Calculator

Find how many units you must sell to cover fixed and variable costs, and the revenue that gets you there.

Finance

Currency Converter

Convert major world currencies using current reference exchange rates.

Finance

VAT Calculator

Add or remove value-added tax and show the net and tax amounts.

Finance

Price per Unit Calculator

Compare package prices using a normalized cost per unit.

Finance

CAGR Calculator

Calculate compound annual growth rate between a starting and final value.

Finance

Inflation Calculator

Estimate future purchasing cost from an annual inflation rate.

Finance

PayPal Fee Calculator

Estimate PayPal processing fees and exactly how much lands in your account.

Finance

Stripe Fee Calculator

Estimate Stripe card processing fees, or the amount to charge for a target payout.

Finance

eBay Fee Calculator

Estimate the eBay final value fee, the per-order fee, and the profit left on a sale after your own costs.

Finance

eBay Profit Analyzer

Upload an eBay Transaction report, match product costs by SKU or Item ID, and see actual profit by order, product, and payout without uploading seller data.

Finance

eBay Transaction Report Analyzer

Audit an eBay Transaction report for net proceeds, final value and promoted fees, refunds, shipping labels, and rows that need review.

Finance

eBay Payout Reconciliation

Group eBay transactions by payout ID, compare expected net proceeds with included payout transfers, and export differences for bookkeeping review.

Finance

eBay Earnings Report Analyzer

Upload an eBay Earnings CSV to total gross amount, expenses, refunds, item costs, and net earnings while finding loss-making orders and missing costs.

Finance

Etsy Fee Calculator

Estimate Etsy listing, transaction and payment processing fees on a sale, and the profit left after your costs.

Finance

Etsy Payment Account Reconciliation

Upload an Etsy monthly statement to separate sales, fees, refunds, marketing, unavailable funds, and deposits without treating a bank transfer as profit.

Finance

Shipping Cost Calculator

Estimate shipping cost from base price, weight, distance, and surcharges.

Finance

Markup Calculator

Calculate selling price, markup, and margin from product cost.

Finance

Cost per Click Calculator

Calculate CPC, clicks, spend, conversion rate, and cost per acquisition.

Finance

Customer Lifetime Value Calculator

Estimate customer value from order size, frequency, margin, and retention.

Finance