金融

事業ローン計算機

Estimate payments, total interest, and amortization for a business loan.

事業評価計算機

Estimate business value via revenue multiple, EBITDA, book value, or DCF.

事業予算計算機

Roll up monthly income and expenses across categories.

労務費計算機

Fully-loaded labor cost including benefits and payroll taxes.

人時計算機

Total man-hours from workers × hours × days.

販売手数料計算機

Compute commission across flat, tiered, or base+commission structures.

バーンレート計算機

Monthly burn and cash runway from expenses and revenue.

解約率計算機

Customer and revenue churn with average customer lifetime.

顧客獲得コスト

CAC plus LTV:CAC ratio for unit-economics sanity.

コンバージョン率計算機

Conversions ÷ visitors, with benchmarks and reverse mode.

直帰率計算機

Single-page sessions ÷ total sessions.

CTR計算機

Clicks ÷ impressions, with channel benchmarks.

CPM計算機

Solve any of CPM, cost, or impressions given the others.

CPC/CPM計算機

Clicks, impressions, and estimated conversions for an ad budget.

CPA計算機

Ad spend ÷ conversions.

ROAS計算機

Revenue ÷ ad spend, with break-even benchmark.

AdSense計算機

Estimate AdSense earnings from pageviews, CTR, and CPC.

YouTube収益計算機

Estimate YouTube earnings from views and RPM.

ウェブサイト広告収入計算機

Monthly ad revenue from pageviews, RPM by niche, and fill rate.

回収期間計算機

Years to recover an investment from cash inflows.

離職率計算機

Employees lost ÷ employees at start.

離職率計算機（ターンオーバー）

Separations ÷ average headcount, with replacement cost.

貢献利益計算機

Per-unit and total CM, with break-even units.

売上原価計算機

Cost of goods sold from beginning + purchases − ending inventory.

平均固定費

Total fixed costs spread over quantity produced.

FTE計算機

Full-time equivalents from part-time hours.

FIFO計算機

COGS and ending inventory under FIFO accounting.

GMROI計算機

Gross margin return on inventory investment.

HHI計算機

Herfindahl-Hirschman Index from up to 8 market shares.

スタートアップ費用計算機

One-time + ongoing × runway months.

従業員コスト計算機

Total annual employee cost: salary, benefits, payroll tax, overhead.

売上ランレート

Annualize revenue from a partial period.

市場シェア計算機

Company revenue ÷ total market size.

単価計算機

Cost per unit, suggested retail, and bulk-discount table.

リード単価計算機

Marketing spend ÷ leads, with channel benchmarks.

メール開封率計算機

Open rate, click rate, and CTOR with benchmarks.

ブラッドフォード係数計算機

HR absence-pattern score: S² × D.

コンサルティング料金計算機

Daily and hourly rate needed to hit a target take-home.

SaaS LTV計算機

Lifetime value from ARPA, margin, and monthly churn.

SaaSメトリクス計算機

Net MRR churn, NRR, ARPU, ARR — the core SaaS dashboard.

売り切れ率

Units sold ÷ units received.

インフルエンサー料金計算機

Estimate sponsored content rates by platform and following.

EVM計算機

SV, CV, SPI, CPI, EAC from PV, EV, AC.

EMV計算機

Probability-weighted decision outcomes across scenarios.

複利計算機

Future value with compounding and optional regular contributions.

単利計算機

Interest earned with no compounding, plus a compound comparison.

金利計算機

Solve for rate given principal, interest, and time.

投資計算機

Lump sum + monthly contributions projected forward.

CAGR計算機

Compound annual growth rate from beginning and ending values.

NPV計算機

Net present value across up to 8 cash-flow years.

IRR計算機

Internal rate of return via Newton-Raphson iteration.

現在価値計算機

Discount a future value back to today.

将来価値計算機

Grow a present amount forward, with or without contributions.

APY計算機

Convert APR to APY at any compounding frequency.

APR計算機

Back-solve APR from a loan amount, payment, and term.

収益率計算機

Simple and annualized return with optional income.

複利成長計算機

Generalized compound growth for any metric (users, revenue, etc.).

連続複利

A = P × eʳᵗ — the limit of frequent compounding.

DCF計算機

Enterprise value from FCFs, terminal growth, and WACC.

割引率計算機

Solve for the rate that bridges PV and FV.

EAR計算機

Convert a nominal rate to EAR.

経費率計算機

Dollar cost of fund fees over time.

保有期間収益率

Total return including income over a holding period.

機会費用計算機

Difference in future value between two investment options.

CD（譲渡性預金）計算機

Maturity value of a CD with chosen APY and term.

72の法則計算機

Doubling time from a rate, or required rate from a doubling time.

年率換算リターン

Convert a holding-period return to an annualized rate.

資産価値上昇計算機

Total and annual appreciation, with optional real-value adjustment.

ベーシスポイント計算機

Convert between basis points and percentages.

シャープレシオ計算機

Risk-adjusted return: excess return ÷ standard deviation.

貨幣の時間価値

Solve for PV, FV, rate, periods, or payment given the other four.

暗号資産利益計算機

Profit/loss including buy and sell fees.

ビットコイン利益計算機

Profit/loss for a Bitcoin trade with fees.

ドルコスト平均法

DCA outcomes at fixed or varying prices.

インフレ調整後リターン

Real (post-inflation) return using the Fisher equation.

ポートフォリオリターン計算機

Weighted average return across up to 6 holdings.

DRIP計算機

Project portfolio growth from dividend reinvestment.

株式計算機

Profit, ROI, and break-even for a stock trade with commissions.

株式平均取得価格計算機

Weighted average cost from up to 5 purchase lots.

株式分割計算機

New share count and adjusted price after a split.

配当計算機

Annual dividend income (before and after tax) plus yield on cost.

配当利回り計算機

Yield = annual dividend ÷ price, with optional forward yield.

配当性向

Dividends ÷ earnings — sustainability check.

EPS計算機

Basic and diluted earnings per share.

PER計算機

Price-to-earnings ratio with earnings yield.

時価総額計算機

Shares × price, with size classification.

CAPM計算機

Required return from risk-free rate, beta, and market return.

WACC計算機

Weighted average cost of capital from equity, debt, and tax rate.

ROE計算機

Net income ÷ equity, with optional DuPont breakdown.

ROA計算機

Net income ÷ total assets.

グレアム数計算機

Benjamin Graham's fair-value estimate for a defensive investor.

本質的価値計算機

Fair-value estimates via DDM, Graham, or P/E methods.

債券価格計算機

Price = PV of coupons + PV of face value.

債券利回り計算機

YTM and current yield from price, face, coupon, and maturity.

債券最終利回り計算機

Yield to maturity and yield to call.

クーポンレート計算機

Coupon rate from annual payment and face value.

負債資本比率計算機

Total liabilities ÷ shareholders' equity.

インタレストカバレッジレシオ

EBIT ÷ interest expense.

当座比率計算機

Liquid assets ÷ current liabilities.

ブラック・ショールズ計算機

Call/put prices and Greeks for European options.

コールオプション計算機

Break-even and payoff for a long call at various stock prices.

マージンコール計算機

Price at which a maintenance margin call is triggered.

売上税計算機

Add tax to a price or remove it from a tax-inclusive total.

VAT計算機

Add or remove VAT at any rate.

所得税計算機

Bracket-by-bracket tax on US federal income.

キャピタルゲイン税計算機

Short-term vs long-term capital gains tax with NIIT.

給与計算機

Convert salary across hourly, weekly, monthly, and annual.

総支給から手取り計算機

Net take-home pay after federal, state, FICA, and deductions.

手取りから総支給計算機

Required gross for a target take-home.

昇給計算機

New salary, change, and 5-year earnings impact.

請求可能時間計算機

Utilization and revenue from billable vs total hours.

1.5倍残業計算機

Regular plus overtime pay at 1.5× or 2×.

宝くじ税計算機

Lump sum vs annuity after federal and state tax.

住宅購入可能額計算機

How much house you can afford under 28/36 DTI rules.

住宅ローン償却

Monthly payment plus full amortization summary.

住宅ローン借り換え

Monthly savings and break-even months from refinancing.

LTV計算機

LTV ratio and PMI threshold.

PMI計算機

Monthly PMI and the month it drops off.

キャップレート計算機

NOI ÷ property value.

賃貸物件計算機

Cash flow, cap rate, cash-on-cash return.

賃貸 vs 購入計算機

Net worth comparison over a horizon.

クロージングコスト計算機

Buyer or seller closing cost range with line items.

貯蓄計算機

Future savings balance with regular contributions.

貯蓄目標計算機

Monthly amount needed to hit a savings target by a date.

緊急資金計算機

Target fund size from monthly essentials.

自動車ローン計算機

Vehicle financing monthly payment and true cost.

FIRE計算機

Years to financial independence at a safe withdrawal rate.

50-30-20ルール計算機

Allocate take-home pay across needs, wants, and savings.

デットスノーボール計算機

Pay off smallest balances first; roll payments forward.

デットアバランチ計算機

Pay off highest interest rate first — mathematically optimal.

クレジットカード完済

Months to pay off + total interest at a fixed payment.

退職計算機

Nest egg target plus how long it lasts.

401(k)計算機

Future 401(k) balance including employer match.

Roth IRA計算機

Compare tax-free Roth growth vs Traditional tax-deferred.

ローン計算機

Standard amortizing loan: payment, interest, total.

アモチゼーション計算機

Loan payoff with optional extra payments.

学生ローン計算機

Standard, extended, and income-driven plan comparison.

総返済負担率

Front-end and back-end DTI ratios with lender thresholds.

マージン計算機

Margin and markup from cost and selling price.

マークアップ計算機

Selling price from cost + markup percentage.

割引率計算機

Discount amount and final price.

手数料計算機

Commission earned on sales — flat or tiered.

PayPal手数料計算機

Net amount received after PayPal fees.

Etsy手数料計算機

Listing, transaction, and processing fees on an Etsy sale.

Amazon FBA計算機

Referral + fulfillment fees on an Amazon FBA sale.

Stripe手数料計算機

Net received after Stripe processing fees.

商品当たり利益計算機

Net profit per sale after all costs and fees.

EBITDA計算機

Earnings before interest, taxes, depreciation, and amortization.

粗利率計算機

Gross profit and margin from revenue and COGS.

減価償却計算機

Straight-line, double-declining, or sum-of-years depreciation.

運転資本計算機

Current assets minus current liabilities.

在庫回転率計算機

COGS ÷ average inventory; days of inventory.

限界費用計算機

Cost of producing one additional unit.

EOQ計算機

Optimal order size that minimizes inventory cost.

需要の価格弾力性

%ΔQ ÷ %ΔP — how sensitive demand is to price.

フリーキャッシュフロー計算機

FCF = operating cash flow − capital expenditures.

売上成長率計算機

Period-over-period growth (QoQ, YoY, MoM).

インフレ計算機

Adjust a dollar amount across years using CPI.

GDP計算機

GDP = C + I + G + (X − M).

失業率計算機

Unemployed ÷ labor force × 100.

CPIインフレ計算機

Compute a CPI from basket costs, plus the period inflation rate.

複合成長率

Annualized growth rate between two endpoints.

貨幣乗数計算機

1 ÷ reserve ratio — banking money creation.

実質金利計算機

Fisher equation: real = (1+nominal)/(1+inflation) − 1.

テイラー・ルール計算機

Suggested fed funds rate from inflation and output gap.

トランプ関税計算機

Tariff owed and consumer pass-through estimate.

EMI計算機

Equated Monthly Installment for any loan.

SIP計算機

Future value of a Systematic Investment Plan.

PPF計算機

Maturity value of a Public Provident Fund account.

英国税計算機

Income tax, National Insurance, and net take-home for England/Wales/NI.

英国印紙税

Stamp duty for first-time buyers, home movers, and additional properties.

ザカート計算機

2.5% Zakat on zakatable wealth above nisab.

クロスレート

Derive A/C from A/B and B/C rates.

フィボナッチリトレースメント

Standard Fibonacci support/resistance levels.

VA障害計算機

VA 'whole person' combined rating across multiple conditions.

NPS計算機

Corpus, lump sum, and monthly pension at retirement.

RMD計算機

Annual minimum withdrawal from IRA / 401(k).

お金カウンター計算機

Total cash from bill and coin denominations.