Interest & Payment Calculator
Lesson 5 turns APR and repayment time into monthly payment, interest and total repayment.
Zero to 850 · Complete Curriculum
Zero to 850: Table of Contents
Twelve lessons across four chapters. Read the series in order like a course, or go directly to the credit question you need today.
Educational information — not individualized financial or legal advice.
Zero to 850 is a general financial-literacy series. It explains credit concepts, risks, options, and questions readers may want to consider; it does not make an individual's financial or legal decision. Credit models, product terms, lender and issuer policies, consumer protections, laws, and personal circumstances can vary. Readers should verify current official information and consider an appropriate qualified professional when individualized guidance is needed.
Teen & Accessible Companion
Need the shorter version?
Use the Zero to 850 Quick Reference for the main ideas, plain-language reminders, application checklist, identity-protection steps, and official help resources.
Jump to a Chapter
Four stages of the journey
Chapter I · Lessons 1–3
BEFORE YOU BORROW
Foundation, preparation before 18, and choosing a first account you may keep for decades.
- 01 What Is Credit—and Why Should I Care? Credit, reports, scores, bureaus, and why the same purchase can cost two people different amounts.
- 02 Before 18: Building the Foundation Before You Have a Score Banking, income, authorized-user strategy, identity protection and credit freezes.
- 03 Your First Credit Card: Choosing an Account You May Keep for Decades Secured and starter cards, deposits, fees, graduation and the anchor-account idea.
Chapter II · Lessons 4–6
LEARN TO OPERATE THE MACHINE
Statement timing, the real price of interest and the trap built into minimum payments.
- 04 The Two Dates That Control Your Credit Card Statement closing date versus due date, reported balances, autopay and timing.
- 05 Interest: The Price of Renting Someone Else’s Money APR, grace periods and what interest costs in real dollars. Includes an interactive calculator.
- 06 The Minimum Payment Trap Why the smallest allowed payment can keep debt alive for years. Includes an interactive comparison.
Chapter III · Lessons 7–9
CREDIT MEETS REAL LIFE
Everyday spending decisions, your first apartment, and what happens when family and credit mix.
- 07 Should I Put This on My Credit Card? Green, yellow and red spending decisions—groceries, rent, tuition, medical bills and emergencies.
- 08 Rent, Apartments and Your First Place Rent reporting, traceable payments, tenant screening and preparing a strong application.
- 09 When Family and Credit Mix Authorized users, co-signers, accounts opened in your name and how to recover when something goes wrong.
Chapter IV · Lessons 10–12
BUILD AND PROTECT YOUR FUTURE
Who evaluates your credit, how to prepare for major applications and what comes after the number.
- 10 Who Is Looking at Your Credit—and What Are They Looking For? Landlords, card issuers, auto and mortgage lenders, employers, insurers, utilities and carriers.
- 11 Preparing for the Big Three: Apartment, Car and Home A 90-day preparation plan covering reports, balances, inquiries, documents and rate shopping.
- 12 780 Is the Goal. 850 Is the Souvenir. Maintenance, emergency savings, investing, ownership, financial independence—and passing the knowledge on.
Companion Guide
Teen & Accessible Quick Reference
The entire series condensed into plain language, larger type, short definitions and simple checklists for readers who prefer less information on the page at one time.
Interactive Learning
Tools inside the curriculum
The Minimum Payment Trap
Lesson 6 lets the reader compare minimum payments with a fixed payment and see the difference in time and cost.
Official Resources
Need help checking or protecting your credit?
Each lesson includes topic-specific official sources. The series also points readers toward the federally authorized credit-report source, consumer-protection resources, the three major credit bureaus, identity-theft recovery resources and housing guidance.
Educational notice: Zero to 850 provides general financial education, not individualized financial, legal, tax or lending advice. Credit-scoring models, lender requirements, fees, product terms, laws and policies can vary and change. Verify current terms with the appropriate issuer, lender, agency or account agreement before making a financial decision.
Trademarks and affiliation. FICO is a registered trademark of Fair Isaac Corporation. VantageScore is a registered trademark of VantageScore Solutions, LLC. Equifax, Experian and TransUnion are trademarks of their respective owners. Zero to 850 and Dance Mogul Magazine LLC are independent and are not affiliated with, endorsed by, sponsored by, or acting on behalf of any credit bureau, credit-scoring company, card issuer, lender, screening company, or government agency. Product and organization names are used only to identify and explain what they are. Links to government and industry resources are provided for reference and do not imply endorsement of this series by those organizations. All other trademarks are the property of their respective owners.