CalculationTime

Press kit

CalculationTime media and embed kit

Short descriptions and pre-approved embed snippets for bloggers, educators, journalists and directory editors.

One-line description

CalculationTime is a clean calculator hub that shows formulas, assumptions, worked examples and live math explanations beside the answer.

Logo assets

Use the CalculationTime site mark from `/icon.svg`, `/icon.png` or `/assets/calculationtime-og-v2.png` when a listing needs a logo or preview image.

Verification badge

External sites can use the free CalculationTime badge from `/badge.svg` and link it to `/verify/` when they cite or embed a CalculationTime calculator.

API and structured data

CalculationTime is preparing API access for calculator metadata, widget discovery, citation companions and utility endpoints. For now, media and partner sites can use `/widgets/`, `/developers/api/`, `/api/v1/content-index`, `/llms.txt` and `/.well-known/llms-citation.txt`, or contact `calculationtime.com@gmail.com` for API access planning.

Finance

Mortgage Payment Calculator

Estimate a monthly principal-and-interest mortgage payment from loan amount, interest rate and term, with optional tax and insurance fields.

<iframe title="Mortgage Payment Calculator by CalculationTime" src="https://www.calculationtime.com/embed/mortgage-payment-calculator/" width="100%" height="720" loading="lazy"></iframe>Canonical page

Health

BMI Calculator - Adult Body Mass Index, Healthy Weight Range & BMI Prime

Calculate adult BMI from metric or US units, see the BMI category, healthy weight range, BMI Prime, Ponderal Index and clear health limitations.

<iframe title="BMI Calculator - Adult Body Mass Index, Healthy Weight Range & BMI Prime by CalculationTime" src="https://www.calculationtime.com/embed/bmi-calculator/" width="100%" height="720" loading="lazy"></iframe>Canonical page

Astronomy

Moon Phase Calendar

Computed lunar phase, illumination and phase-event context.

<iframe title="Moon Phase Calendar by CalculationTime" src="https://www.calculationtime.com/embed/moon-phase-calendar/" width="100%" height="720" loading="lazy"></iframe>Canonical page

Astronomy

Sunrise Star Map

Sunrise azimuth and pre-dawn star-map calculation.

<iframe title="Sunrise Star Map by CalculationTime" src="https://www.calculationtime.com/embed/sunrise-star-map/" width="100%" height="720" loading="lazy"></iframe>Canonical page

Astronomy

The Crux Perpetual

Developing Southern Cross clock, calendar and educational sky calculator.

<iframe title="The Crux Perpetual by CalculationTime" src="https://www.calculationtime.com/embed/crux-perpetual/" width="100%" height="720" loading="lazy"></iframe>Canonical page

Astronomy

Southern Cross Clock

Southern sky clock-and-calendar instrument.

<iframe title="Southern Cross Clock by CalculationTime" src="https://www.calculationtime.com/embed/southern-cross-clock/" width="100%" height="720" loading="lazy"></iframe>Canonical page

Business

CBAM Calculator

Staged EU carbon-border adjustment estimate.

<iframe title="CBAM Calculator by CalculationTime" src="https://www.calculationtime.com/embed/cbam-calculator/" width="100%" height="720" loading="lazy"></iframe>Canonical page

Astronomy

Cosmic Calendar

Deep-time scale calculator from universe age to one calendar year.

<iframe title="Cosmic Calendar by CalculationTime" src="https://www.calculationtime.com/embed/cosmic-calendar/" width="100%" height="720" loading="lazy"></iframe>Canonical page