Sharp Logica Tools

Sharp Logica

Tools & Calculators

Practical calculators and estimators for engineering, finance, and technology decisions.

31

Calculators

3

Categories

Free, no account required

Runs entirely in your browser

Category

Business Tools

Tools for commercial planning and team economics.

  • Due Diligence Risk Score Calculator

    Run a preliminary technology risk assessment across architecture, security, technical debt, operations, cloud, team risk, and delivery health.

  • Unit Conversion Calculator

    Convert common units quickly across time, length, weight, temperature, and currency.

  • Break-Even Calculator

    Calculate break-even point from fixed costs, variable costs, and unit price to understand when a product becomes profitable.

  • Profit Margin Calculator

    Calculate gross margin, net margin, and markup from cost and selling price to validate profitability targets.

  • ROI Calculator

    Estimate return on investment by comparing project gains against total investment cost over time.

  • CAC Payback Calculator

    Estimate how many months it takes to recover customer acquisition cost using gross margin and recurring revenue.

  • LTV Calculator

    Estimate customer lifetime value from average revenue, gross margin, and retention assumptions.

  • Business Name Generator

    Generate business name ideas from brand direction, keywords, and naming style preferences.

  • User Name Generator

    Generate user name ideas from keywords, style preferences, and platform constraints.

  • Password Generator

    Generate strong password suggestions based on length and character-set preferences.

  • Invoice Number Generator

    Generate structured invoice numbers with prefixes, dates, and sequence patterns.

  • Age Calculator

    Calculate exact age from date of birth and compare date spans in years, months, and days.

  • Working Days Calculator

    Calculate working days between dates with weekday and holiday exclusions.

  • Meeting Time Zone Calculator

    Convert meeting times across time zones to find overlap windows for distributed teams.

  • Contractor Rate Calculator

    Estimate fair contractor rates from annual income goals, utilization, expenses, and taxes.

  • Pricing Calculator

    Estimate product or service pricing using margin targets, cost inputs, and revenue assumptions.

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Category

Finance Tools

Calculators for money, planning, and operating costs.

  • Burn Rate Calculator

    Calculate your startup's monthly burn rate and cash runway. Enter cash on hand, monthly revenue, and expenses to see how long your capital lasts.

  • Loan Calculator

    Calculate monthly loan payments, total repayment, and total interest for any fixed-rate loan. Works for personal loans, car loans, and business loans.

  • Markup vs Margin Calculator

    Compare markup and margin from cost and selling price to avoid pricing mistakes.

  • Mortgage Calculator

    Calculate your monthly mortgage payment instantly. Enter home price, down payment, interest rate, and loan term to see total cost, total interest, and payoff date.

  • Percentage Calculator

    Quickly calculate percentages, percentage change, and percentage increase or decrease.

  • Rule of 72 Calculator

    Estimate how long it takes for an investment to double using the Rule of 72.

  • Salary Calculator

    Convert salary across hourly, daily, monthly, and yearly views with optional deductions.

  • Tax Estimator

    Estimate tax liability using income, filing assumptions, and deduction inputs.

  • Tip Calculator

    Estimate tip amount, total bill, and per-person split based on service percentage and party size.

  • VAT Calculator

    Calculate VAT-inclusive price, VAT-exclusive price, and VAT amount from entered values and tax rates.

  • Fuel Cost Calculator

    Estimate trip fuel cost using distance, fuel efficiency, and current fuel price.

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Category

Engineering Tools

Calculators and scorecards for architecture, delivery, and technical strategy.

  • AI ROI Calculator

    Model potential return on investment from AI initiatives by comparing implementation cost to measurable gains.

  • Architecture Scorecard

    Score your software architecture across maintainability, scalability, reliability, and delivery risk.

  • Team Capacity Calculator

    Estimate effective engineering capacity based on team size, availability, and non-project overhead.

  • Technical Debt Calculator

    Estimate the cost, risk, and delivery impact of unresolved technical debt in your product or platform.

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