Original reproducible assets

Reproducible scenario research

Downloadable tables generated from documented formulas and explicit hypothetical inputs. These are sensitivity benchmarks, not surveys or observed market averages.

What can this collection help you decide?

First-party, aggregated search-performance observations from BoringToolsKit Search Console, published as citable benchmarks: impression growth from 82 to 6,723 across consecutive 28-day windows, the daily trajectory, and impression share by query cluster. Queries are aggregated counts, not user data; numbers are self-reported first-party measurements, not independent audits.

Explore the reproducible Search Visibility Benchmarks 2026 (First-Party) →

Scenario data

Marketplace Seller Fee Scenario Benchmark

This reproducible scenario table shows how hypothetical marketplace fee rates change estimated net profit at four sale prices when product cost and seller-paid shipping assumptions stay fixed. It is a planning comparison, not a statement of any platform’s current fee schedule.

Scenario data

Appliance Electricity Cost Scenario Benchmark

BoringToolsKit energy cost tools include this reproducible appliance electricity cost table. It calculates hypothetical 30-day costs across appliance wattages, daily runtimes, and editable price-per-kWh scenarios. It demonstrates the formula rather than asserting a local utility rate; taxes, tiers, fixed fees, and equipment cycling may change a bill.

Scenario data

Team Meeting Cost Scenario Benchmark

This reproducible table models hypothetical meeting cost across participant counts, durations, and loaded hourly-cost assumptions. It includes an annual weekly recurrence to make the compounding effect visible. It is not a claim about an employer’s actual compensation or productivity.

Scenario data

Construction Material Overage Scenario Benchmark

This reproducible table applies hypothetical 5%, 10%, and 15% overage scenarios to three base material quantities. The percentages are comparison inputs, not universal recommendations. Product specifications, pattern, breakage, site conditions, and professional judgment control a real order.

Scenario data

Search Visibility Benchmarks 2026 (First-Party)

First-party, aggregated search-performance observations from BoringToolsKit Search Console, published as citable benchmarks: impression growth from 82 to 6,723 across consecutive 28-day windows, the daily trajectory, and impression share by query cluster. Queries are aggregated counts, not user data; numbers are self-reported first-party measurements, not independent audits.

Scenario data

Mortgage Rate and Term Scenario Benchmark

This reproducible table computes monthly principal-and-interest payments for a hypothetical 300,000 dollar loan across rates of 5.5, 6.5, and 7.5 percent and 15- and 30-year terms. It is a planning comparison only; property tax, insurance, PMI, and HOA dues are excluded and vary by property.

Scenario data

Auto Loan Rate and Term Scenario Benchmark

This reproducible table computes monthly payments and total interest for a hypothetical 30,000 dollar auto loan across APRs of 4.5, 6.9, and 9.9 percent and 48-, 60-, and 72-month terms. Longer terms lower the payment but raise total interest; taxes, fees, trade-in value, and down payment are excluded.

Scenario data

Savings Growth Scenario Benchmark

This reproducible table projects the future value of a hypothetical 10,000 dollar balance with 200 dollars in monthly contributions across APYs of 3, 4.5, and 6 percent at 5- and 10-year horizons. APYs are comparison inputs, not rate predictions; taxes on interest and contribution limits are excluded.

Scenario data

Commuter Fuel Cost Scenario Benchmark

This reproducible table computes annual and monthly fuel cost for a hypothetical 50-mile daily round trip across 260 workdays, crossing fuel economies of 30, 35, and 40 MPG with gas prices of 3.00, 3.50, and 4.00 dollars per gallon. Maintenance, depreciation, tolls, and parking are excluded.

Scenario data

Hourly Wage and Overtime Scenario Benchmark

This reproducible table computes gross weekly and annual pay for a hypothetical 25-dollar hourly wage at 30, 40, and 45 hours per week, applying time-and-a-half overtime beyond 40 hours across 52 working weeks. Gross pay only: taxes, benefits, deductions, and state overtime rules are excluded.

GEO audit

AI-Citation Readiness: BoringToolsKit vs Top Calculator Sites

Observed comparison of llms.txt, structured data, answer blocks, and verified facts across the largest calculator websites.

Worked Example: Deriving a 36-Month Payment by Hand

Take a 12,000 dollar loan at 6 percent APR for 36 months. The monthly rate is 0.06 / 12 = 0.005. The standard amortization formula is payment = P * i * (1+i)^n / ((1+i)^n - 1), so the only hard part is (1.005)^36. Compounding step by step gives about 1.19668.

Plugging in: 12,000 * 0.005 = 60, so the numerator is 60 * 1.19668 = 71.80, and the denominator is 1.19668 - 1 = 0.19668. That yields 71.80 / 0.19668 = about 365.06 dollars per month. Over 36 payments that is 13,142.16 dollars, meaning roughly 1,142 dollars of total interest on a 12,000 dollar balance.

The first month confirms it: interest owed is 12,000 * 0.005 = 60.00 dollars, so 305.06 of the 365.06 payment reduces principal. Month two starts on a 11,694.94 dollar balance, where interest is about 58.47 dollars and principal paydown rises to 306.59. That widening gap, not the headline rate, is what makes longer terms expensive.

Where the Monthly Payment Model Breaks Down

The formula assumes every month is 1/12 of a year, but lenders use different day-count conventions. On a 12,000 dollar balance at 6 percent, actual/365 interest accrues about 1.97 dollars per day, so a 31-day month costs roughly 61.16 dollars in interest versus the 60.00 the model assumes: about 14 dollars more interest across a full year.

Prepayment also behaves differently than most borrowers expect. Adding 50 dollars per month to the 365.06 payment shortens this 36-month loan to roughly 31.3 payments and cuts total interest by about 143 dollars. But the saving is not linear: the same 50 dollars extra applied in month 30 saves only a few dollars, because by then the balance is near 2,100 dollars and monthly interest is under 11 dollars.

Finally, quoted APRs can exclude lender fees charged at origination. A 12,000 dollar loan with a 200 dollar origination fee disburses only 11,800 while still amortizing on 12,000, which raises the effective cost by about 1.7 percent even though the stated APR is unchanged.