Fidamen

Motorcycle Loan Payment Calculator

This calculator estimates periodic payments, total interest, and total cost for a motorcycle purchase financed by a loan. It supports monthly, bi‑weekly and weekly payment schedules and lets you add down payment, sales tax, one‑time fees, and optional extra payments per period.

Results are estimates intended for planning. Lenders may use slightly different rounding, compounding conventions, or disclose APR differently. Confirm the lender's amortization schedule and disclosure for final figures.

Updated Nov 30, 2025QA PASS — golden 25 / edge 120Run golden-edge-2026-01-23

Governance

Record 3a2652972343 • Reviewed by Fidamen Standards Committee

Inputs

Results

Updates as you type

Periodic payment (per selected period)

$135.47

Number of payments

130

Total amount paid (principal + interest)

$17,611.23

Total interest paid

$2,411.23

Equivalent monthly payment (for comparison)

$293.52

OutputValueUnit
Periodic payment (per selected period)$135.47USD
Number of payments130—
Total amount paid (principal + interest)$17,611.23USD
Total interest paid$2,411.23USD
Equivalent monthly payment (for comparison)$293.52USD
Primary result$135.47

Visualization

Methodology

The calculator converts the annual percentage rate (APR) to a periodic rate by dividing by the selected payments per year (12, 26, or 52). It then computes the standard amortizing payment using the annuity formula when interest is nonzero, or a simple division if rate is zero.

Sales tax and one‑time fees are added to the financed amount unless otherwise excluded by the lender. Down payment reduces the financed amount. Optional extra payments are added to each period and accelerate payoff, reducing total interest in practice.

F.A.Q.

Why does bi‑weekly look like it reduces interest?

Bi‑weekly schedules make 26 payments per year (two every month plus two extra per year) which results in more frequent principal reduction compared with a 12‑payment schedule of equal per‑month amount. That accelerates payoff and reduces interest, assuming payment amounts are derived from the annuity formula for the chosen frequency.

Does this calculator compute APR or finance charge disclosures?

This tool estimates payments and total interest based on the inputs. APR disclosures and finance charge calculations are governed by regulation and lender-specific rounding; use the lender's official disclosure for legally binding APR and finance charge values.

Are taxes and fees always financed?

Not always. Some lenders require upfront payment of taxes or fees, or treat trade‑in differently. This calculator assumes sales tax and fees are added to the financed amount by default; adjust inputs to match your lender's treatment.

How accurate are these results?

Results are numerical estimates. They follow standard annuity formulas but do not replace lender amortization schedules. Precision depends on the accuracy of inputs and assumptions about compounding/rounding. For high‑stakes decisions, compare with your lender's amortization and disclosures.

Sources & citations

Further resources

Versioning & Change Control

Audit record (versions, QA runs, reviewer sign-off, and evidence).

Record ID: 3a2652972343

What changed (latest)

v1.0.0 • 2025-11-30 • MINOR

Initial publication and governance baseline.

Why: Published with reviewed formulas, unit definitions, and UX controls.

Public QA status

PASS — golden 25 + edge 120

Last run: 2026-01-23 • Run: golden-edge-2026-01-23

Engine

v1.0.0

Data

Baseline (no external datasets)

Content

v1.0.0

UI

v1.0.0

Governance

Last updated: Nov 30, 2025

Reviewed by: Fidamen Standards Committee (Review board)

Credentials: Internal QA

Risk level: low

Reviewer profile (entity)

Fidamen Standards Committee

Review board

Internal QA

Entity ID: https://fidamen.com/reviewers/fidamen-standards-committee#person

Semantic versioning

  • MAJOR: Calculation outputs can change for the same inputs (formula, rounding policy, assumptions).
  • MINOR: New features or fields that do not change existing outputs for the same inputs.
  • PATCH: Bug fixes, copy edits, or accessibility changes that do not change intended outputs except for previously incorrect cases.

Review protocol

  • Verify formulas and unit definitions against primary standards or datasets.
  • Run golden-case regression suite and edge-case suite.
  • Record reviewer sign-off with credentials and scope.
  • Document assumptions, limitations, and jurisdiction applicability.

Assumptions & limitations

  • Uses exact unit definitions from the Fidamen conversion library.
  • Internal calculations use double precision; display rounding follows the unit's configured decimal places.
  • Not a substitute for calibrated instruments in regulated contexts.
  • Jurisdiction-specific rules may require official guidance.

Change log

v1.0.0 • 2025-11-30 • MINOR

Initial publication and governance baseline.

Why: Published with reviewed formulas, unit definitions, and UX controls.

Areas: engine, content, ui • Reviewer: Fidamen Standards Committee • Entry ID: 0a61e32ad875